ANALOG DEVICES AD74416H Evaluation Board User Guide

User Guide for ANALOG DEVICES models including: AD74416H Evaluation Board, AD74416H, Evaluation Board, Board

UG-2153 (Rev.0)

Evaluating the AD74416H Quad-Channel, Software Configurable Input and Output with HART Modem

Analog Devices, Inc.

User Guide | EVAL-AD74416H

2 apr 2025 — the AD74416H. Page 11. User Guide. EVAL-AD74416H. SOFTWARE QUICK START PROCEDURES ... This results in continu- ous measurement of the ADC. Figure 16. Start ADC ...

UG-2153: Evaluating the AD74416H Quad-Channel, Software Configurable Input and Output with HART Modem (Rev.0)

AD74416H Datasheet and Product Info | Analog Devices

File Info : application/pdf, 24 Pages, 4.78MB

eval-ad74416h-ug-2153

User Guide | EVAL-AD74416H
UG-2153
Evaluating the AD74416H Quad-Channel, Software Configurable Input and Output with HART Modem

FEATURES
Fully-featured evaluation board for the AD74416H Custom power solution utilizing the MAX17691B and
a multiwinding transformer System isolation provided by the ADuM341E and ADuM342E On-board 2.5V ADR4525 reference SPI-compatible Arduino and PMOD connector PC-based Analysis | Control | Evaluation (ACE ) Software for
control No-OS MBED drivers providing example code in C
EVALUATION KIT CONTENTS
EVAL-AD74416H-ARDZ evaluation board
EQUIPMENT NEEDED
EVAL-SDP-CK1Z (SDP-K1) Bench top power supply and connector cables PC running Windows® 7 SP1 (32/64-bit), Windows 8.1
(32/64-bit), Windows 10 (32/64-bit)
DOCUMENTS NEEDED
AD74416H data sheet MAX17691B data sheet ADuM341E and ADuM342E data sheets ADR4525 data sheet
SOFTWARE NEEDED
ACE software AD74416H ACE plug-in for control

GENERAL DESCRIPTION
The EVAL-AD74416H-ARDZ is a fully-featured evaluation board that a user can use to evaluate the features of the AD74416H as a full system solution. Power is provided by the MAX17691B isolated flyback solution. Digital channels isolation utilizes the ADuM341E and ADuM342E isolators.
The AD74416H is a quad-channel, software configurable, and input and output device. The device has functionality for analog input/output, digital input/output, thermocouple, and 2-wire, 3-wire resistance temperature detector (RTD) measurements integrated into a singlechip solution with a compatible serial-peripheral interface (SPI).
A user can control the EVAL-AD74416H-ARDZ by a system demonstration platform (SDP) board. The EVAL-SDP-CK1Z (SDP-K1) board allows the EVAL-AD74416H-ARDZ to be controlled by the USB port of a PC using the AD74416H ACE software. The EVALAD74416H-ARDZ requires an operating supply of 24V. The PC provides power to the EVAL-SDP-CK1Z (SDP-K1) board.
Full specifications on the AD74416H, MAX17691B, ADuM341E, and ADuM342E are available in the corresponding data sheets available from Analog Devices, Inc., and must be consulted with this user guide when using the EVAL-AD74416H-ARDZ board.

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS.

Rev. 0 | 1 of 24

User Guide
TABLE OF CONTENTS
Features................................................................ 1 Evaluation Kit Contents......................................... 1 Equipment Needed................................................1 Documents Needed...............................................1 Software Needed...................................................1 General Description...............................................1 Evaluation Board Photograph ...............................3 Evaluation Board Hardware...................................4
Board Layout...................................................... 4 Header Configuration Options............................4 Power Supplies.................................................. 6 SPI Communication............................................6 Reference Options............................................. 7
REVISION HISTORY
3/2025--Revision 0: Initial Version

EVAL-AD74416H
LVIN Pin - Low Voltage ADC Input.................... 7 Output Channels................................................ 7 Digital Output......................................................8 Test Points..........................................................8 Generic ID.......................................................... 9 Software Quick Start Procedures........................ 10 Accessing ACE Software for AD74416H
Evaluation ......................................................10 Configuring the EVAL-AD74416H-ARDZ......... 10 Using the Software for Evaluation.................... 10 Evaluation Board Schematics and Artwork ........ 17 Ordering Information............................................20 Bill of Materials................................................. 20

analog.com

Rev. 0 | 2 of 24

User Guide
EVALUATION BOARD PHOTOGRAPH

EVAL-AD74416H

Figure 1. EVAL-AD74416H-ARDZ Evaluation Board Photograph

analog.com

Rev. 0 | 3 of 24

User Guide
EVALUATION BOARD HARDWARE
BOARD LAYOUT
The EVAL-AD74416H-ARDZ is laid out with the following three isolated zones:
PGND: The input power supply is applied to the power side of the EVAL-AD74416H-ARDZ.
MGND: Communications to the EVAL-AD74416H-ARDZ are received on the micro side by the SDP Arduino header connection.

EVAL-AD74416H
GND: The AD74416H and all related circuitry are on the AD74416H (or field) side of the EVAL-AD74416H-ARDZ.
Each zone is separated by a 2.2mm isolation barrier. Figure 2 shows the three isolation zones as these zones are laid out on the EVAL-AD74416H-ARDZ.

Figure 2. Isolation Zones on the EVAL-AD74416H-ARDZ

HEADER CONFIGURATION OPTIONS
Configuration headers must be set by the jumpers properly for operation of the EVAL-AD74416H-ARDZ. The functions and default states of these options are listed in Table 1 and shown in Figure 3.

Before applying power and signals to the EVAL-AD74416H-ARDZ, ensure that all links are set to the default positions, as defined in Table 1.

analog.com

Figure 3. Default Header Configurations

Rev. 0 | 4 of 24

User Guide
EVALUATION BOARD HARDWARE

EVAL-AD74416H

Table 1. Header Configurations and Jumper Functionality

Header Group

Header (Jumper)

Function

Description

Default Position

POWER SUPPLIES P31 (Black) AD74416H main supply

Dual or single supply configuration.

Dual supply Pin 1 to Pin 2

P60 (Black) AVDD_HI power rail

Configure the AVDD_HI power rail input from flyback or external Flyback

connector.

Pin 2 to Pin 3

P61 (Black) AVDD_LO power rail

Configure the AVDD_LO power rail input from flyback or external connector.

Flyback Pin 2 to Pin 3

P56 (Black) AVCC power rail

Configure the AVCC power rail input from flyback or external connector.

Flyback Pin 2 to Pin 3

P59 (Black) DVCC power rail

Configure the DVCC power rail input from flyback or external Flyback

connector.

Pin 2 to Pin 3

P53 (Black) AVSS power rail

Configure the AVSS power rail input from flyback or external connector.

Flyback Pin 2 to Pin 3

POWER SUPPLIES DIGITAL OUTPUT

P33 (Blue) DO_VDD power rail

Configure the DO_VDD power rail input from external connector External connector

or AVDD_HI domain1.

Pin 1 to Pin 2

DIGITAL OUTPUT

P45 (Blue)

GPIO_A smart diode control GPIO connection to smart blocking diode control at Channel A. Not connected Open

P47 (Blue)

GPIO_B smart diode control GPIO connection to smart blocking diode control at Channel B. Not connected Open

P49 (Blue)

GPIO_C smart diode control GPIO connection to smart blocking diode control at Channel C. Not connected Open

P51 (Blue)

GPIO_D smart diode control GPIO connection to smart blocking diode control at Channel D. Not connected Open

EXTERNAL REFERENCE

P44 (Black) External reference

Connect 2.5V external reference output to AD74416H REFIO External reference

pin.

Closed

LOW VOLTAGE ADC INPUT (LVIN PIN)

P12 (Black) LVIN configuration

Connector for LVIN pin: allows to connect thermistor to LVIN pin Thermistor

or to connect LVIN input pin externally.

Pin 1 to Pin 2

SPI

P11 (Red) SPI address

Configuration of SPI address of AD74416H.

Address 00

Pin 1 to Pin 2

Pin 3 to Pin 4

P36 (Red) SDO enable

Enable SDO signal generated by AD74416H.

SDO enabled Closed

P38 (Red) SYNC, SDI, SCLK enable Enable SYNC, SDI and SCLK SPI signals to AD74416H.

Signals enabled Closed

P62 (Red) SPI interconnection

Connects SPI signals to P9 board-to-board connector.

Not connected (5 signal jumpers) Open

P8 (Red) SYNC configuration

Alternative SYNC lines options.

uc_SYNCB Pin 1 to Pin 3

SPI/DIGITAL

P7 (Black) Isolators power

Power for isolators at Arduino side of the board.

+3V3_IO Pin 1 to Pin 2

DIGITAL

P34 (Black) ALERT open collector bypass Bypass open collector driver at ALERT signal. Once ALERT is Open collector Active

active, red LED DS8 indicates it.

Open

P35 (Black) ADC_RDY open collector bypass

Bypass open collector driver at ADC_RDY signal. Once ADC_RDY is active, orange LED DS9 indicates it.

Open collector Active Open

P37 (Black) ALERT and ADC_RDY enable Enable ALERT and ADC_RDY signal generated by AD74416H. Signals enabled Closed

P39 (Black) RESET and GPIO_x enable Enabled RESET and GPIO_x signal generated at Arduino side. Signals enabled Closed

P40 (Black) RESET signal

Activates RESET signal generated at Arduino side.

RESET not connected

analog.com

Rev. 0 | 5 of 24

User Guide

EVAL-AD74416H

EVALUATION BOARD HARDWARE

Table 1. Header Configurations and Jumper Functionality (Continued)

Header Group

Header (Jumper)

Function

Description

P41 (Black) GPIO_F signal

Activates GPIO_F signal generated at Arduino side.

P42 (Black) ALERT signal

Connects ALERT signal generated by AD74416H.

P43 (Black) ADC_RDY signal

Connects ADC_RDY signal generated by AD74416H.

CHANNEL INPUT AND OUTPUT TERMINALS

P46 (Black) P48 (Black)

P50 (Black)

P52 (Black)

ISP_A to I/OP_A connection ISP_B to I/OP_B connection ISP_C to I/OP_C connection ISP_D to I/OP_D connection

Channel A direct connection of the ISP_A to I/OP_A terminals. Header is open only in 4-wire voltage output mode.
Channel B direct connection of the ISP_B to I/OP_B terminals. Header is open only in 4-wire voltage output mode.
Channel A direct connection of the ISP_C to I/OP_C terminals. Header is open only in 4-wire voltage output mode.
Channel A direct connection of the ISP_D to I/OP_D terminals. Header is open only in 4-wire voltage output mode.

Default Position
Open
Not connected Open2
ALERT connected Closed
ADC_RDY connected Closed
ISP_A and I/OP_A connected Closed
ISP_B and I/OP_B connected Closed
ISP_C and I/OP_C connected Closed
ISP_D and I/OP_D connected Closed

1 AVDD_HI domain is significantly current limited. For more details, see the Power Supplies section. 2 When header P41 is closed, GPIO_F must be configured as input. Not doing so creates conflict with enabled and connected GPIO_x signal.

POWER SUPPLIES
The EVAL-AD74416H-ARDZ comes with a power supply connector VIN (P54) that provides power directly to the flyback. Set this supply to 24V (range between 19.2V and 28.8V). Green LED diode DS7 indicates the presence of input voltage.
The flyback solution utilizing the MAX17691B generates the following isolated supply voltages to the AD74416H:
+AVDD_HI provides the AD74416H AVDD_HI voltage supply of 21V.
+AVDD_LO provides the AD74416H AVDD_LO voltage supply of 13V.
+AVCC_DVCC provides the AD74416H AVCC and DVCC voltage supplies of 5V.
-AVSS provides the AD74416H AVSS voltage supply of -16V.

The digital output DO_SUPPLY connector (P32) provides a power supply to the digital output circuitry and features. For demonstration purposes, configure the header P33 in such a way that the DO_VDD voltage of the AD74416H is provided by the AVDD_HI voltage rail. If the AVDD_HI is supplied from the flyback +AVDD_HI voltage rail, the output current is significantly limited to <100mA as the total sum of all channel's output currents, and this value cannot be exceeded.
Figure 4 shows the placement of power connector and power configuration headers on the EVAL-AD74416H-ARDZ board.

The 2.5V external reference (ADR4525) is powered by AVCC domain. Use the ADR4525 as an alternative to the AD74416H on-chip reference. On-board isolators ADuM341E and ADuM342E are powered by DVCC domain of the AD74416H.

Optionally, supply each power supply rail externally by a connector, AVDD_HI by P29, AVDD_LO by P30, AVCC_DVCC by P58, and AVSS by P55. This gives user a flexibility of the AD74416H evaluation under various power supply conditions.

To use an external connector, change configuration of the corresponding header (P60 for AVDD_HI, P61 for AVDD_LO, P56 for AVCC, P59 for DVCC, and P53 for AVSS). Headers are placed below the power connectors, and the setting for using an external connector is labeled as EXT. By default, the board is configured to use the flyback solution labeled at jumpers as FLYBACK.

Figure 4. Power Supplies Connectors and Headers
SPI COMMUNICATION The EVAL-SDP-CK1Z (SDP-K1) board handles the communication to the EVAL-AD74416H-ARDZ by the PC. The EVAL-SDP-CK1Z

analog.com

Rev. 0 | 6 of 24

User Guide

EVALUATION BOARD HARDWARE

(SDP-K1) is connected to the EVAL-AD74416H-ARDZ using the Arduino header connections.
The EVAL-SDP-CK1Z (SDP-K1) board controls the SPI communication using ADuM341E isolator. The ADuM341E isolator must have enabled output drivers to operate correctly. Header P36 and P38 enable the ADuM341E isolator, and these jumpers must be in-place as per default configuration.
The address pins header P11 is available to configure the SPI address of the AD74416H. For default configuration of SPI address header, place one jumper between Pin 1 and Pin 2 and place another jumper between Pin 3 and Pin 4. The default address is 00 and must be configured during evaluation of the AD74416H when using ACE software. The SPI address header (P11) configuration is shown in Table 2.

Table 2. P11 - SPI Address Header Configuration

Binary Address

Pin 1 to Pin 2 (AD0)

Closed

Open

Closed

Open

Pin 3 to Pin 4 (AD1) Closed Closed Open Open

SYNC (also called chip select) signal is configured by P8 jumper setting. P8 jumper allows to use alternative pins to drive this signal. For evaluation using ACE software, jumper must be placed between Pin 1 and Pin 3 of P8 header. SYNC signal configuration by header P8 is shown in Table 3.

Table 3. P8 - SYNC Signal Configuration

SYNC Source

SYNC Name

P6 (Pin 3)

uc_SYNCB

P2 (Pin 1) P2 (Pin 2) P2 (Pin 3)

uc_SYNCB2 uc_SYNCB3 uc_SYNCB4

P8 Jumper Placement Pin 1 to Pin 3 Pin 2 to Pin 4 Pin 3 to Pin 5 Pin 4 to Pin 6

The SPI jumpers for header configurations are red, which allow for easy discernment from other settings.
The isolators on the Arduino connector side are powered by the EVAL-SDP-CK1Z (SDP-K1) board. Place the jumper at header P7 between Pin 1 and Pin 2 as per default configuration to ensure that sufficient power for the isolators during operation.
A reset button (S1) is also available on the EVAL-AD74416H-ARDZ to manually reset the AD74416H.

REFERENCE OPTIONS

By default, the EVAL-AD74416H-ARDZ is configured to use an external reference, the ADR4525. The external reference is connected to a REFIO signal by placing the jumper at header P44. Alternatively, use the AD74416H on-chip reference by disconnecting header P44 and enabling an internal reference. The internal reference of the AD74416H is enabled by SPI write to the relevant

analog.com

EVAL-AD74416H
register. For more details, refer to the AD74416H data sheet. Figure 5 shows a schematic snippet.
Figure 5. External Reference Connection
LVIN PIN - LOW VOLTAGE ADC INPUT The LVIN pin is the low voltage input to the ADC. The LVIN pin is particularly useful for thermocouple measurement and connecting the thermistor for cold junction compensation. Depending on application needs, the LVIN pin can have other uses. For more details on LVIN pin, refer to the AD74416H data sheet. The header P12 is dedicated to the LVIN pin. Placing a jumper from Pin 1 to Pin 2 on the P12 header allows connection of on board thermistor. If external connection of low voltage input is required, disconnect the jumper from Pin 1 to Pin 2 and use Pin 2 (AD74416H LVIN Pin) and Pin 3 (GND) to connect external voltage source (see the schematic snippet, as shown in Figure 6).
Figure 6. LVIN PIN Connection
OUTPUT CHANNELS The AD74416H channels are configured, as shown in the AD74416H data sheet. The EVAL-AD74416H-ARDZ features the following four channels: Channel A, Channel B, Channel C, and Channel D. There are two input/output and two sensing screw terminal blocks for each channel. Use the input/output positive (I/OP_x) and the input/output negative (I/ON_x) screw terminals to connect the required load to the AD74416H channel.
Rev. 0 | 7 of 24

User Guide
EVALUATION BOARD HARDWARE In some channel functions, more than two screw terminals are required for operation. In such a case, the input sensing positive (ISP_x) and the input sensing negative (ISN_x) terminals are available. Each terminal also has corresponding test points available. Each channel has the configuration headers (P46, P48, P50, and P52). By default, the jumper is placed to this configuration header. Create direct connection of ISP_x and I/OP_x terminals. Disconnect the jumper if a 4-wire voltage output channel function is required. Figure 7 shows the output channels, connectors, configuration headers, and test points placement. The blue jumpers are related to channel configuration of digital output. For more details on digital output, see the Digital Output section.
Figure 7. Output Channels
DIGITAL OUTPUT For digital output, an additional power supply is required to provide current to the external field-effect transistors (FETs). When using the digital output function, connect the DO_VDD power supply supplied from external connector (P32) by connecting Pin 1 to Pin 2 of P33 header. For demonstration purposes, use the AVDD_HI power domain. However, if AVDD_HI domain is supplied

EVAL-AD74416H
from on-board flyback, there are significant current limitations and the digital output load must be a high resistance value. For more details, see the Power Supplies section.
The EVAL-AD74416H-ARDZ headers related to digital output are blue.
Use caution with the external FETs that are thermally damaged if the short-circuit times are set too long. Choose the following FETs for the external digital output function: SI7113ADN-T1-GE3: P-channel metal-oxide semiconductor (PMOS) FET.
A smart blocking diode is available at each channel. The smart blocking diode allows reduction of power being dissipated at the blocking diode. The smart blocking diode circuit is controlled by corresponding GPIO_x.
The following is an example of how to configure the smart blocking diode for Channel A:
1. Set the AD74416H Channel A to high impedance. 2. Configure GPIO_A as output. 3. Place a jumper at header P45 to connect the GPIO_A signal to
the smart diode circuitry. 4. Drive the GPIO_A pin output to high to activate the smart diode. 5. Enable the digital output function, and control Channel A output
FET.
Example for Channel A, if the smart blocking diode feature is not required, then disconnect the jumper P45. In this scenario, the body diode of the PMOS transistor (Q2), which is typically used as the smart blocking diode, functions as a simple blocking diode.
TEST POINTS
Multiple test points are available on the EVAL-AD74416H-ARDZ for all critical pins and on the connector screw terminals. Each board section has relevant ground test points, such as GND TP9, MGND TP1, and PGND TP8. The test point's locations are shown in Figure 8. Along with dedicated test points, use each header to probe a corresponding signal.

analog.com

Rev. 0 | 8 of 24

User Guide
EVALUATION BOARD HARDWARE

EVAL-AD74416H

Figure 8. EVAL-AD74416H-ARDZ Test Points

GENERIC ID

Each evaluation board have a sticker placed on the top to identify the generic part assembled on the board. Evaluation board with AD74416H generic carries EVAL-AD74416H-ARDZ label.

In addition to physical label on the boards, it is possible to read GENERIC_ID register. The GENERIC_ID register contains generic identifier in the 3 bits GENERIC_ID bit field. Table 4 shows the identifiers for each part.

Table 4. GENERIC_ID Identification

Part

GENERIC_ID

AD74416H

6 (110 binary)

analog.com

Rev. 0 | 9 of 24

User Guide
SOFTWARE QUICK START PROCEDURES
ACCESSING ACE SOFTWARE FOR AD74416H EVALUATION To evaluate the AD74416H, do the following steps: 1. Download and install the ACE software. 2. Run the ACE software. 3. The AD74416H plug-in must be automatically listed in Plug-in
Manager. If a user does not find it, refresh the plug-ins and install the new plug-ins listed. CONFIGURING THE EVAL-AD74416H-ARDZ To set up the EVAL-AD74416H-ARDZ, do the following steps: 1. Set VIO_ADJUST to 3.3V using the P14 header (close to USB C) on the EVAL-SDP-CK1Z (SDP-K1) board. 2. Connect a USB cable to the PC, and then to the EVAL-SDPCK1Z (SDP-K1) board. 3. Connect the EVAL-SDP-CK1Z (SDP-K1) board to the EVALAD74416H-ARDZ. Board are design to be mounted into each other via Arduino shield connector. Insert EVAL-AD74416HARDZ pins directly into EVAL-SDP-CK1Z (SDP-K1) sockets in the way that connectors at both boards correctly align 1:1. 4. Power up the EVAL-AD74416H-ARDZ with the relevant power supplies. 5. Open the ACE software. 6. The EVAL-SDP-CK1Z (SDP-K1) board program automatically updates the ACE drivers. The DS1 diode (next to USB C connector) at EVAL-SDP-CK1Z (SDP-K1) flashes. Do this step when EVAL-SDP-CK1Z (SDP-K1) board is connected with the running ACE GUI. 7. The board appears as Attached Hardware (see Figure 9). To continue, double-click the AD74416H Board window.
Figure 9. ACE Evaluation Software - Attached Hardware

EVAL-AD74416H
USING THE SOFTWARE FOR EVALUATION
Main AD74416H Tab
The main AD74416H tab view is shown in Figure 11, which shows the interactive blocks of the AD74416H. To configure the AD74416H, click the interactive blocks. The interactive blocks have darker blue color compared to static figures.
The main AD74416H tab view allows configuration of Main ADC, Diagnostic Channel, Temperature Sensor, Watchdog Timer, the GPIOs, the channel functions, and other sub-blocks.
Configure each channel independently using the drop-down menu next to the corresponding channel label: CHA, CHB, CHC, and CHD. When switching channel functions, always configure the corresponding channel back to high impedance prior to making the channel function change. For more details, refer to the AD74416H data sheet.
To access the alerts of the AD74416H, click one of the corresponding alert pages, such as ALERTS, CHANNEL ALERTS, or HART ALERTS. For more details on alert tabs, see the Alerts Tabs section.
The AD74416H diagnostics measurements are accessible through Diagnostics Results. For more details on how to set up the diagnostics, see the Diagnostic Measurement section.
To access the register map, click the Proceed to Memory Map button at the bottom right corner of the window.
To plot the ADC results, click the Proceed to Analysis button at the bottom right corner of the window.
The value of the ADC channel measurements appears next to the relevant channel function if ADC is enabled.
Each AD74416H ACE sub-windows have evaluation control panel, see Figure 10. Control panel is placed at top of the sub-window. Control panel buttons have the following functions:
Apply Changes: Writes configured values and bit fields of the ACE GUI into the AD74416H register map by SPI.
Read All: Reads all registers of the AD74416H. Reset Chip: Initiates software reset of the AD74416H by SPI. Diff: Highlights the register value differences at Memory Map
view, and allows to write register values configured at ACE. To do this change, click Apply Changes. Software Defaults: Configure the registers to its default values. To do this change, click Apply Changes. Memory Map Side-By-Side: Allows to turn on register map of the AD74416H.

analog.com

Rev. 0 | 10 of 24

User Guide
SOFTWARE QUICK START PROCEDURES

EVAL-AD74416H

Figure 10. Evaluation Control Panel

Figure 11. Main AD74416H Tab View

analog.com

Rev. 0 | 11 of 24

User Guide
SOFTWARE QUICK START PROCEDURES
Alerts Tabs
The AD74416H alerts are logically divided into corresponding tabs ALERTS, CHANNEL ALERTS, or HART ALERTS.
ALERTS tab shows the alerts of the AD74416H. ALERT STATUS section shows the general alerts, which reflects the alert status register. The LIVE STATUS register shows the currently ongoing alerts (the cause of those alerts is not removed yet), and the SUPPLY ALERT STATUS section shows the alerts related to power supplies (see Figure 12).
The RESET_OCURRED bit is active once the reset is complete. This alert informs the user that a reset of AD74416H has occurred.
To clear all active alerts, click Clear All Status Flags button. Also, to clear the individual alerts one by one, click the corresponding STATUS bit. Clear all alerts after reset of the part. ALERTS tab is shown in Figure 12. Mask the individual bits if required by using the corresponding MASK bit. The same functionality is also available on the other alert tabs.

EVAL-AD74416H
Figure 13. CHANNEL ALERT STATUS Tab View
HART ALERT STATUS tab is shown in Figure 14. HART ALERT STATUS tab shows the summary of the alerts related to the HART modem per each channel.

Figure 12. ALERTS Tab View
CHANNEL ALERT STATUS tab is shown in Figure 13. CHANNEL ALERT STATUS tab shows the summary of the alerts presented at individual channels. Each channel consists of the breakdown of the alert indicators based on the channel function.

Figure 14. HART ALERT STATUS Tab View
Diagnostic Measurement
The AD74416H features four diagnostic channels that a user can enable simultaneously. The diagnostics gives additional insights into state of the AD74416H or its channel loads. For more details on diagnostics, refer to the AD74416H data sheet.
To enable diagnostic measurement, do the following steps:
1. Click the Diagnostic Channel button to choose the diagnostic to measure. A Diagnostic Assignment Cfg window appears, as shown in Figure 15. In the ADC_CONV_CTRL > CONV_SEQ area, select ADC in IDLE mode, once changes to ADC configuration complete.

analog.com

Rev. 0 | 12 of 24

User Guide
SOFTWARE QUICK START PROCEDURES

EVAL-AD74416H
3. A user can view the results at Diagnostic Result view, as shown in Figure 17. Green indicator lights up at Diagnostics Results tab, which indicates active diagnostics measurement. Alternatively, to plot the results in the Analysis tab, click Proceed to Analysis button at the bottom right corner. For more details on Analysis tab, see the Analysis Tab section.

Figure 15. Assigning Diagnostic
2. To start ADC measurements, in the CONV_SEQ area, select CONTINUOUS, as shown in Figure 16. This results in continuous measurement of the ADC.

Figure 17. Diagnostics Measurements

Figure 16. Start ADC Measurements

analog.com

Rev. 0 | 13 of 24

User Guide
SOFTWARE QUICK START PROCEDURES
Analysis Tab The Analysis tab allows for further evaluation of input and output variables or diagnostic measurements. Click the Proceed to Analysis button at the bottom right corner of the main window (as seen on figure Figure 11).

EVAL-AD74416H
Analysis allows the ADC output to be plotted in real time and gives additional insights into the measured signal. As shown in Figure 18, in the CAPTURE tab > Channel Settings > Select Channel to Plot drop-down menu, choose the signal source that is plotted.

Figure 18. Analysis Window

analog.com

Rev. 0 | 14 of 24

User Guide
SOFTWARE QUICK START PROCEDURES
Register Map To access the register map, click the Proceed to Memory Map button at the bottom right corner of the main window, as shown in the Figure 11. Use the register map to interface directly to the AD74416H. To write each register change by SPI to AD74416H, click Apply Changes.

EVAL-AD74416H
To open more details in another window, click an individual register. Configure the individual bit fields in the register in the detailed register window. Figure 19 shows the register map and detailed register window.

Figure 19. Register Map Window

analog.com

Rev. 0 | 15 of 24

User Guide
SOFTWARE QUICK START PROCEDURES
RTD Configuration Example
This section shows the examples of channel configurations for RTD measurements. Configure each channel independently using the drop-down menu next to the corresponding channel label: CHA, CHB, CHC, and CHD, as shown in the main window Figure 11. For detailed functionality and configuration of the RTD, refer to the AD74416H data sheet.
To configure the 2-wire RTD to measure Pt1000, follow the configuration example, as shown in Figure 20.

EVAL-AD74416H
To configure the 3-wire RTD to measure Pt1000, follow the configuration example, as shown in Figure 21.

Figure 21. 3-Wire RTD Configuration to Measure Pt1000 at Channel B

Figure 20. 2-Wire RTD Configuration to Measure Pt1000 at Channel A

analog.com

Rev. 0 | 16 of 24

User Guide
EVALUATION BOARD SCHEMATICS AND ARTWORK

EVAL-AD74416H

Figure 22. EVAL-AD74416H-ARDZ Assembly Diagram, Top View

analog.com

Figure 23. EVAL-AD74416H-ARDZ Assembly Diagram, Bottom View

Rev. 0 | 17 of 24

User Guide
EVALUATION BOARD SCHEMATICS AND ARTWORK

EVAL-AD74416H

Figure 24. EVAL-AD74416H-ARDZ Layer 1, Top Layer

Figure 25. EVAL-AD74416H-ARDZ Layer 2, Ground Layer

analog.com

Rev. 0 | 18 of 24

User Guide
EVALUATION BOARD SCHEMATICS AND ARTWORK

EVAL-AD74416H

Figure 26. EVAL-AD74416H-ARDZ Layer 3, Power Layer

Figure 27. EVAL-AD74416H-ARDZ Layer 4, Bottom Layer

analog.com

Rev. 0 | 19 of 24

User Guide

EVAL-AD74416H

ORDERING INFORMATION

BILL OF MATERIALS

Table 5. Bill of Materials for EVAL-AD74416H-ARDZ Quantity Reference Designator

Description

Manufacturer

AVCC, AVDDHI, AVDDLO, AVSS,

Connectors, PCB test points, red

DO_VDD, DVCC, I/OP_A, I/OP_B, I/OP_C,

I/OP_D, LDO1V8, REFIO, TP4

Vero Technologies

C1, C2, C8, C9, C11, C49, C50, C51, C52, Ceramic capacitors, 10F, 100V, 10%, X7S, 1210 Murata

C53, C63, C64, C66, C74

C10, C65

Ceramic capacitors, low ESR, 22F, 16V, 20%, X7R, TDK 1210

C13, C16, C17, C18, C19, C23, C24, C31, Ceramic capacitors, 0.1F, 16V, 10%, X7R, 0402 Wurth Elektronik

C55, C56, C57, C58

C14, C15, C20, C21, C70, C71, C76

Ceramic capacitors, 10F, 10V, 10%, X7R, 0805 Wurth Elektronik

C22, C25, C26

Ceramic capacitors, 0.1F, 50V, 10%, X7R, 0603 AVX

C27, C54

Ceramic capacitors, 0.1F, 100V, 10%, X7R, 0805 TDK

C28

Ceramic capacitor, 0.039F, 16V, 10%, X7R, 0603 Yageo

C29, C32

Ceramic capacitors, 2.2F, 6.3V, 10%, X7R, 0805 Kemet

Ceramic capacitor, low ESR, 2.2F, 16V, 10%, X7S, TDK 0603, AEC-Q200

C30

Ceramic capacitor, 1F, 25V, 10%, X7R, 0603

Wurth Elektronik

C33, C34, C36, C37, C38, C40, C41, C42, Ceramic capacitors, 4.7nF, 100V, 10%, X7R, 0805 Wurth Elektronik

C44, C45, C46, C48

C35, C39, C43, C47

Ceramic capacitors, 220pF, 50V, 5%, C0G, 0603 Yageo

Ceramic capacitor, low ESR, 1000pF, 50V, 10%, TDK X7R, 0402, AEC-Q200

Ceramic capacitor, 0.012F, 16V, 10%, X7R, 0402 AVX

C67, C68, C69, C78

Ceramic capacitors, 3300pF, 3000V, 10%, X7R, 1812

Vishay

Ceramic capacitor, 100pF, 16V, 10%, X7R, 0402 AVX

C72, C73, C75

Ceramic capacitors, 10F, 50V, 10%, X7R, 1206 Samsung

Single Zener diode, 36V, 5%, DO214-AC, AECQ101

Onsemi

D10

Zener diode, 17V, 2%, 19, 1/2W, SOD-123

Vishay

D11, D16, D21, D26

Diodes, ESD capability rectifiers, 1A

Vishay

D12, D17, D22, D27

TVS diodes, unidirectional

Onsemi

D13, D14, D18, D19, D23, D24, D28, D29 TVS diodes, bidirectional, 36V, 600W

Taiwan Semiconductor

Diode switching, 100V, 1A, DO-214AC

Diodes Inc.

D3, D4, D6, D33

Schottky diodes (TMBS), rectifiers, 100V, 3A, D0-220AA, AEC-Q101

Vishay

D31

Small signal Schottky diode, 100V, 0.2A, SOD-523 ST Microelectronics

D32

TVS diode, single, unidirectional, 36V, 600W

Vishay

Schottky diode barrier rectifier, 50V, 3A, DO-214AB Vishay

Zener diode, 22V, 2%, 29, 1/2W, SOD-123

Vishay

Zener diode, 14V, 2%, 15, 1/2W, SOD-123

Vishay

Zener diode, 5.3V, 0.25W, 4%, SOT-23-3, AECQ101

Nexperia

DS1, DS2, DS3, DS4, DS5, DS6, DS7 Green LEDs, SMD

Kingbright

DS8

Hyper red LED, SMD

Kingbright

DS9

Orange LED, unicolor, 610nm

Kingbright

I/ON_A, I/ON_B, I/ON_C, I/ON_D, TP1, Connectors, PCB test points, black

TP8, TP9

Vero Technologies

Part Number 20-313137
GRM32EC72A106KE05L
C3225X7R1C226M250AC
885012205037
885012207026 06035C104KAT2A C2012X7R2A104K125AA CC0603KRX7R7BB393 C0805C225K9RACTU CGA3E1X7S1C225K080AC
885012206076 885012207120
CC0603JRNPO9BN221 CGA2B2X7R1H102K050BA
0402YC123KAT2A HV1812Y332KXHATHV
0402YC101KAT2A CL31B106KBHNNNE SZ1SMA5938BT3G
MMSZ5247C-E3-08 MSE1PB-M3/89A ESD9M5.0ST5G SMBJ36CA S1B-13-F V3PM10-M3/H
BAT41KFILM SMBJ36A-E3/52 SS35-E3/57T MMSZ5251C-E3-08 MMSZ5244C-E3-08 PLVA653A,215
APHHS1005ZGC APHHS1005SURCK APHHS1005SECK 20-2137

analog.com

Rev. 0 | 20 of 24

User Guide

EVAL-AD74416H

ORDERING INFORMATION

Table 5. Bill of Materials for EVAL-AD74416H-ARDZ (Continued)

Quantity Reference Designator

Description

Manufacturer

Part Number

ISN_A, ISN_B, ISN_C, ISN_D, ISP_A, Connectors, PCB test points, yellow

ISP_B, ISP_C, ISP_D

Vero Technologies

20-313140

P10

PCB connector, unshrouded, header, right angle, 2.54mm pitch
PCB connector, 7 positions, male pin, unshrouded, header, 2.54mm pitch, 5.84mm post height, 2.54mm solder tail

Samtec Samtec

TSW-106-08-L-D-RA TSW-107-07-L-S

P11

PCB connector, 4 positions, male pin, unshrouded, Samtec header, double row, straight, 2.54mm pitch, 5.84mm post height, 2.54mm solder tail

TSW-102-07-T-D

P7, P12, P31, P33, P53, P56, P59, P60, PCB connectors, unshrouded, header, 2.54mm

Wurth Elektronik

P61

pitch, 6mm post height

P15, P16, P19, P20, P23, P24, P27, P28, PCB connectors, header, 2 positions

P29, P30, P32, P54, P55, P58

Phoenix Contact

61300311121 1759017

P3, P5

PCB connector, receptacle, 25mil, square post, 2.54mm pitch
PCB connectors, receptacles, 25mil, square post, 2.54mm pitch

Samtec Samtec

SSQ-106-03-G-S SSQ-108-03-G-S

P34, P35, P36, P37, P38, P39, P40, P41, PCB connectors, 2 positions, header, vertical,

Wurth Elektronik

P42, P43, P44, P45, P46, P47, P48, P49, 2.54mm pitch

P50, P51, P52

PCB connector, receptacle, 25mil, square post, dual Samtec row, 2.54mm pitch

61300211121 SSQ-103-03-G-D

P62

PCB connector, receptacle, 25mil, square post, 2.54mm pitch
PCB connector, unshrouded, header, 10 positions, 2.54mm pitch, gold, 12.7mm × 8.54mm × 5.08mm, straight, through-hole technology

Samtec Wurth Elektronik

SSQ-110-03-G-S 61301021121

PCB connector, 6 positions, male pin, unshrouded, header, 0.64mm square post, 2.54mm pitch, 6mm post height, 3mm solder tail, for CN6P_JMPRSHRT add 3X M000385

Wurth Elektronik

61300621121

Q1, Q3, Q5, Q7

PCB connector, 5 positions, female header/socket, single row, straight, 2.54mm pitch, 10mm solder tail
N-channel MOSFETs, transistors, 50V, 0.2A, SOT-23-3

Samtec Diodes Inc.

SSQ-105-03-G-S BSS138-7-F

Q2, Q4, Q6, Q8, Q_A, Q_B, Q_C, Q_D P-channel MOSFETs, transistors, 100V, 10.8A

Vishay

Resistor, SMD, 3.3M, 1%, 1/16W, 0402

Yageo

SI7113ADN-T1-GE3 RC0402FR-073M3L

R10, R12

R11

Resistors, SMD, 22.1, 1%, 1/8W, 0603, AEC-Q200 KOA Speer Electronics, Inc. RK73H1JTTD22R1F

Resistor, SMD, 10, 1%, 1/10W, 0603, AEC-Q200 Vishay

CRCW060310R0FKEA

R14

Resistor, SMD, 1, 1%, 1/8W, 0603, AEC-Q200 KOA Speer Electronics, Inc. RK73H1JTTD1R00F

R16, R17, R20, R51, R59, R67, R75

Resistors, SMD, 100k, 1%, 1/16W, 0603

Multicomp (SPC)

MC0063W06031100K

Resistor, SMD, 249k, 1%, 1/16W, 0402

Yageo

RC0402FR-07249KL

R22, R24, R28, R29, R30, R31, R32, R33, Resistors, SMD, 10k, 1%, 1/10W, 0603, AEC- Panasonic

R34, R35, R36, R37, R38, R39, R40, R41, Q200

R42, R44, R50, R52, R58, R60, R66, R68,

R74, R76, R90

R25, R26

Resistors, SMD, 4.7k, 5%, 1/10W, 0603

Yageo

ERJ-3EKF1002V RC0603JR-074K7L

R43, R95

Resistor, SMD, 100k, 1%, 1/10W, 0402, AECQ200
Resistors, SMD, 0, jumper, 1/10W, 0603, AECQ200

Panasonic Panasonic

ERJ-2RKF1003X ERJ-3GEY0R00V

analog.com

Rev. 0 | 21 of 24

User Guide

EVAL-AD74416H

ORDERING INFORMATION

Table 5. Bill of Materials for EVAL-AD74416H-ARDZ (Continued)

Quantity Reference Designator

Description

Manufacturer

Part Number

R45

Resistor, SMD, 33k, 0.1%, 1/8W, 0805, AECQ200, high reliability type

Panasonic

ERA-6AEB333V

R46, R48, R54, R56, R62, R64, R70, R72, Resistors, SMD, 2k, 1%, 1/10W, 0603, AEC-Q200 Panasonic

R78

ERJ-3EKF2001V

R47, R55, R63, R71

Resistors, SMD, 2k, 0.01%, 1/10W, 0603, AEC- Stackpole Electronics, Inc. RNCF0603TKY2K00 Q200

R49, R57, R65, R73

Resistors, SMD, 100k, 5%, 1/16W, 0402

Yageo

RC0402JR-07100KL

R53, R61, R69, R77

Resistor, SMD, 200k, 1%, 1/10W, 0402, AECQ200
Resistors, SMD, 0.15, 1%, 1/2W, 1206

Panasonic Bourns Inc.

ERJ-2RKF2003X CRL1206-FW-R150ELF

Resistor, SMD, 10k, 1%, 1/10W, 0402, AEC-Q200 Panasonic

Resistor, SMD, 226k, 1%, 1/10W, 0603, AECQ200

Panasonic

ERJ-2RKF1002X ERJ-3EKF2263V

R79, R86, R87, R88

Resistors, SMD, 0, 1/10W, 0805
Resistor, SMD, 23.7k, 1%, 1/10W, 0402, AECQ200

Multicomp (SPC) Panasonic

MC01W08050R ERJ-2RKF2372X

R80

R83, R84

Resistor, SMD, 56k, 1%, 1/10W, 0402, AEC-Q200 Panasonic

Resistors, SMD, high voltage, 4.7M, 5%, 1/2W, 2010

Bourns Inc.

ERJ-2RKF5602X CHV2010-JW-475ELF

R85, R89

Resistors, SMD, 1k, 5%, 1/16W, 0402

Yageo

RC0402JR-071KL

R91, R92, R93, R94

Resistor, SMD, 33.2, 1%, 1/8W, 0603, AEC-Q200 KOA Speer Electronics, Inc. RK73H1JTTDD33R2F

Resistors, SMD, 3.9k, 1%, 1/10W, 0603

Yageo

RC0603FR-073K9L

R96

R97

Resistor, SMD, 10, 1%, 1/8W, 0805, AEC-Q200 Resistor, SMD, 0, 1/8W, 0805, AEC-Q200

Panasonic Panasonic

ERJ-6ENF10R0V ERJ-6GEY0R00V

RT1

R_A, R_B, R_C, R_D

NTC thermistor, 33k, 5%, 0805, AEC-Q200 Resistors, SMD, 12, 0.1%, 1/10W, 0805

Vishay TE Connectivity

NTCS0805E3333JHT CPF0805B12RE1

Tactile switch, SPST-NO, 0.05A, 12V
IC-TTL, CMOS, high-speed single unbuffered inverter

C&K Onsemi

RS-282G05A3-SM RT MC74VHC1GU04DBVT1G

U10

IC, quad-channel, software configurable input and Analog Devices, Inc. output with HART modem, prelim

AD74416HBCPZ-RL7

IC, ultra-low noise, high accuracy voltage references Analog Devices, Inc.

IC, 32Kbit, serial EEPROM

Microchip Technology

ADR4525BRZ 24AA32A-I/SN

U4, U5, U8

IC-TTL, obsolete, 2 inputs, AND gate with open drain output
IC, 5.7kV rms quad digital isolators

Onsemi Analog Devices, Inc.

MC74VHC1G09DTT1G ADuM341E1BRWZ

IC, 5.7kV rms quad digital isolators
IC, 4.2V to 60V no-opto isolated flyback converter with integrated FET

Analog Devices, Inc. Analog Devices, Inc.

ADuM342E1BRWZ MAX17691BATC+

C12, C79

Custom transformer, 75H, 20%, 10kHz, prelim Ceramic capacitors, 47pF, 100V, 5%, C0G, 0805

Wurth Elektronik AVX

750320519 08051A470JAT2A

Ceramic capacitor, 6800pF, 16V, 10%, X7R, 0603 AVX

0603YC682KAT2A

C59, C60, C61, C62, C80, C81, C82, C83 Ceramic capacitors, 4.7nF, 100V, 10%, X7R, 0805 Wurth Elektronik

885012207120

C77

Ceramic capacitor, 10F, 10V, 10%, X7R, 0805

Wurth Elektronik

885012207026

R13, R98

R15, R18, R19, R21, R23, R82

Resistors, SMD, 820, 1%, 1/16W, 0603
Resistors, SMD, 0, jumper, 1/10W, 0603, AECQ200

Multicomp (SPC) Panasonic

MC0063W06031820R ERJ-3GEY0R00V

R27, R81

Resistors, SMD, 100k, 1%, 1/16W, 0603 Resistor, SMD, 422k, 1%, 1/16W, 0402

Multicomp (SPC) Yageo

MC0063W06031100K RC0402FR-07422KL

TP2, TP3, TP5, TP6

Connectors, PCB test point

Harwin Inc.

S1751-46

analog.com

Rev. 0 | 22 of 24

User Guide

ORDERING INFORMATION

Table 5. Bill of Materials for EVAL-AD74416H-ARDZ (Continued)

Quantity Reference Designator

Description

D15, D20, D25, D30

TVS diodes, bidirectional, 36V, 600W

EVAL-AD74416H

Manufacturer Taiwan Semiconductor

Part Number SMBJ36CA

analog.com

Rev. 0 | 23 of 24

User Guide
ORDERING INFORMATION NOTES

EVAL-AD74416H

ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of
functionality.

Legal Terms and Conditions By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the "Evaluation Board"), you are agreeing to be bound by the terms and conditions set forth below ("Agreement") unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you ("Customer") and Analog Devices, Inc. ("ADI"), with its principal place of business at Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal, temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term "Third Party" includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board. Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED "AS IS" AND ADI MAKES NO WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER'S POSSESSION OR USE OF THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI'S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby submits to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed. All Analog Devices products contained herein are subject to release and availability.

Rev. 0 | 24 of 24

References

Antenna House PDF Output Library 7.0.1600