Analog Devices’ Products and Signal Chain Solutions for Automation Controller Design

a/d converter, operational amplifier

a/d, converter;, operational, amplifier

Analog Devices, Inc.

Analog Devices’ Products and Signal Chain Solutions for ...

Analog Input: Group Isolated Module Analog Input: Channel-to-Channel Isolated Module AMP VOLTAGE INPUTS ˜10V, ˜5V, 0V TO 10V, 0V TO 5V CURRENT INPUTS 4mA TO 20mA, ˜20mA MUX MCU

PDF automation-controller-design
Analog Devices' Products
and Signal Chain Solutions for
Automation Controller Design

Analog Devices Automation Controller Segment Overview
Analog Devices is a leading supplier of industrial precision signal measurement solutions. These solutions are designed into automation controller modules for PLC and DCS systems in process and manufacturing plants and machinery across a wide range of industries including chemical and pharmaceutical, hydrocarbon (oil and gas), environmental (waste water and treatment), and automotive. The combination of ADI's proven system expertise in industrial applications and a comprehensive portfolio of products with leading performance vs. power and integration makes ADI an essential partner for engineers designing automation controllers.

Main Challenges and System Considerations
· High availability systems
· High reliability, longevity of supply, and lower assembly and manufacturing costs
· Increasing I/O channel density and smaller module housing is driving the need for smaller, more integrated solutions, with lower power and enhanced thermal and power efficiency
· Increasing end market need for higher levels of functional safety

Why Choose ADI?

· ADI is a technology leader in precision converters and signal processing with a long history of serving the needs of industrial customers
· ADI is continually investing in core technology and application specific products to meet current and future industrial needs

· ADI has deep system expertise and many years' experience supporting automation controller design cycles
· Long product life cycles, superior reliability, and on time delivery

· Best-in-class signal chain solutions with the most efficient precision measurement over a wide range of module inputs and outputs

Automation Controller Applications · Analog input temperature module · Analog input group isolated module · Analog input channel-to-channel
isolated module · Analog output group isolated module · Analog output channel-to-channel
isolated module

www.analog.com

2 | Automation Controller Design

Analog Input: Temperature Module

OPTIONAL FIELD SUPPLY 24V NOMINAL

BACKPLANE 24V NOMINAL

COMMUNICATION (FIELDBUS)

DC-TO-DC CONVERTER LDO

RTD THERMOCOUPLE

CURRENT SOURCES

REF

MUX

AMP

ADC

MCU

TEMPERATURE SENSOR

INTEGRATED SOLUTION

POWER ISOLATION
DATA ISOLATION

DC-TO-DC CONVERTER LDO
SEQUENCER SUPERVISORY
CONTROLLER

PROFIBUS RS-485 CAN RS-232

Analog Input

Part Number

Description

Integrated Solution--Microcontroller

ADuCM360/ ADuCM361

Low power precision analog microcontroller, ARM CortexTM-M3 with dual/single - ADCs

Key Features and Benefits

· Analog performance · Dual PGA and 24-bit, 4 kSPS ADCs · 12 multiplexed analog inputs · 12-bit DAC
· Digital performance · 32-bit ARM Cortex-M3 processor · 128 kB flash, 8 kB SRAM

· Power consumption only 1 mA with core operating at 500 kHz (both ADCs on, input buffers off, PGA gain of 4, one SPI port on, and all timers on)
· Package and temperature
· 48-lead LFCSP (7 mm × 7 mm)
· ­40°C to +125°C

ADuC7060/ ADuC7061

Low power, precision analog microcontroller, ARM7TDMI® with dual - ADCs

· Dual 24-bit 8 kSPS - ADCs · 8 multiplexed analog inputs · Single 14-bit DAC · ARM7TDMI 16-/32-bit RISC controller

· 32 kB flash and 4 kB SRAM · UART, SPI, GPIO, PWM · Nominal supply 2.5 V · Temperature range: ­40°C to +125°C

Integrated Solution--ADC
AD7792/AD7793/ 3-channel/6-channel, low noise, low power, AD7794/AD7795 - ADC with on-chip in-amp

· 24-bit (AD7793, AD7794)/ 16-bit (AD7792, AD7795)
· Low power: 400 A · PGA: gain from 1 to 128 · 4 ppm/°C on-chip reference

· Programmable current sources · Burnout currents · Simultaneous 50 Hz and 60 Hz rejection · 4.17 SPS to 400 SPS output data rate · Temperature: ­40°C to +105°C

ADC

AD7685/AD7942 16-/14-bit, 250 kSPS PulSAR® ADC

Reference
ADR4520/ADR4525/ Ultralow noise, 2 ppm/°C, high accuracy ADR4530/ADR4533/ voltage reference (2.048 V/2.50 V/3.00 V/ ADR4540/ADR4550 3.30 V/4.096 V/5.00 V)

ADR3412/ADR3420, Low power, 10 ppm/°C CMOS voltage

ADR3425/ADR3430, reference

ADR3433/ADR3440, (1.20 V/2.048 V/2.50 V/3.00 V/3.30 V/

ADR3450

4.096 V/5.00 V)

· Throughput: 250 kSPS
· Pseudo differential analog input range: 0 V to VREF with VREF up to VDD

· INL: ±2 LSB max · SINAD: 93.5 dB @ 20 kHz · Supply range: 2.3 V to 5.5 V

· Initial accuracy: 0.02% max

· Supply range: 3 V to 15 V

· Temperature coefficient: 2 ppm/°C max

· Temperature range: ­40°C to +125°C

· Output noise (0.1 Hz to 10 Hz): 1.25 V p-p @ · 8-lead SOIC package VOUT of 2.5 V

· Initial accuracy: 0.1% max

· Supply range: 2.7 V to 5.5 V

· Temperature coefficient: 8 ppm/°C max
· Output noise (0.1 Hz to 10 Hz): 18 V p-p @ VOUT of 2.5 V

· Temperature range: ­40°C to +125°C · 6-lead SOT-23 package

www.analog.com | 3

Analog Input: Group Isolated Module

VOLTAGE INPUTS ±10V, ±5V, 0V TO 10V,
0V TO 5V
CURRENT INPUTS 4mA TO 20mA, ±20mA

FAULT PROTECTION
FAULT PROTECTION

OPTIONAL FIELD SUPPLY 24V NOMINAL

BACKPLANE 24V NOMINAL

COMMUNICATION (FIELDBUS)

DC-TO-DC CONVERTER LDO

MUX

AMP

REF

ADC

MCU

INTEGRATED SOLUTION
HART MODEM

POWER ISOLATION
DATA ISOLATION

DC-TO-DC CONVERTER LDO
SEQUENCER SUPERVISORY
CONTROLLER

PROFIBUS RS-485 CAN RS-232

Analog Input: Channel-to-Channel Isolated Module

VOLTAGE INPUT ±10V, ±5V, 0V TO 10V,
0V TO 5V
CURRENT INPUT 4mA TO 20mA, ±20mA

FAULT PROTECTION

VOLTAGE INPUT ±10V, ±5V, 0V TO 10V,
0V TO 5V
CURRENT INPUT 4mA TO 20mA, ±20mA

FAULT PROTECTION

HART MODEM
AMP

LDO

REF

ADC

MCU

INTEGRATED SOLUTION

POWER ISOLATION
DATA ISOLATION

HART MODEM
AMP

LDO

REF

ADC

MCU

INTEGRATED SOLUTION

POWER ISOLATION
DATA ISOLATION

BACKPLANE 24V NOMINAL

COMMUNICATION (FIELDBUS)

DC-TO-DC CONVERTER LDO

SEQUENCER SUPERVISORY
CONTROLLER

PROFIBUS RS-485 CAN RS-232

Analog Input
Part Number Fault Protector

Description

ADG465/ADG468 Single-/octal-channel protector

· Fault protection up to ±40 V · Low power dissipation

Key Features and Benefits · Latchup proof construction

4 | Automation Controller Design

Analog Input (continued)

Part Number HART Modem

Description

Key Features and Benefits

AD5700/AD5700-1 Low power HART® modem

· HART compliant fully integrated FSK modem · On-chip oscillator (AD5700-1) · 4 mm × 4 mm, 24-lead LFCSP

· 1.71 V to 5.5 V power supply · Buffered HART output · Temperature range: -40°C to +125°C

Amplifiers ADA4096-2/ ADA4096-4
AD8275

30 V, micropower, overvoltage protection, RRIO dual/quad op amps

· Input overvoltage protection, 32 V above and below the supply rails
· No phase reversal for input voltage up to ±32 V beyond the power supply

G = 0.2, level translation, 16-bit ADC driver

· Translates ±10 V to +4 V · Drives 16-bit SAR ADCs · High CMRR: 96 dB · Low gain drift: 1 ppm/°C

· Single-supply operation: 3 V to 30 V · Rail-to-rail input and output swing · Unity gain bandwidth: 800 kHz typ @
VSY = ±15 V
· Low offset drift: 2.5 V/°C · Rail-to-rail output · 8-lead MSOP package

AD8475

Precision, selectable gain, full differential funnel amp

ADC
AD7192/AD7193/ AD7194

2-channel/4-channel/8-channel, 4.8 kHz, ultralow noise, 24-bit - ADC with PGA

· Attenuate and level shift: G = 0.4×, 0.8× · Fully differential or single-ended input/output · Rail-to-rail output
· 4.7 Hz to 4.8 kHz output data rate · PGA: gain from 1 to 128 · Up to 22 noise free bits (gain = 1)

· Suited for driving 18-bit converter up to 4 MSPS · 10 nV/Hz output noise · 3 ppm/°C gain drift
· Offset drift: 5 nV/°C · Gain drift: 1 ppm/°C

AD7173-8

Low power, 8-channel/16-channel, 31.25 kSPS, 24-bit, - ADC

· Fast and flexible output rate: 1.25 SPS to 31.25 kSPS
· 17.5 noise free bits at 31.25 kSPS · 24 noise free bits at 1.25 SPS · INL: ±3 ppm/FSR

· Crosspoint multiplexer (enable system diagnostic) · Internal clock and internal 2.5 V,
3.5 ppm/°C reference · 6 mm × 6 mm, 40-lead LFCSP · Temperature range: -40°C to +105°C

AD7176-2

24-bit, 250 kSPS - ADC with 20 µs settling

· Fast and flexible output rate--5 SPS to 250 kSPS · Fast settling time--20 µs · 17 noise free bits at 250 kSPS · 22 noise free bits at 5 SPS

· Throughput: 250 kSPS

AD7685/AD7942

16-/14-bit, 250 kSPS PulSAR® ADC · Pseudo differential analog input range: 0 V to VREF with VREF up to VDD

Reference

ADR4520/ADR4525/ Ultralow noise, 2 ppm/°C, high

· Initial accuracy: 0.02% max

ADR4530/ADR4533/ accuracy voltage reference (2.048 V/ · Temperature coefficient: 2 ppm/°C max

ADR4540/ADR4550 2.50 V/3.00 V/3.30 V/4.096 V/5.00 V) · Output noise (0.1 Hz to 10 Hz): 1.25 V p-p @ VOUT of 2.5 V

ADR3412/ADR3420, Low power, 10 ppm/°C CMOS ADR3425/ADR3430, voltage reference

ADR3433/ADR3440, (1.20 V/2.048 V/2.50 V/3.00 V/

ADR3450

3.30 V/4.096 V/5.00 V)

· Initial accuracy: 0.1% max · Temperature coefficient: 8 ppm/°C max · Output noise (0.1 Hz to 10 Hz): 18 V p-p @ VOUT of 2.5 V

Microcontroller

· Analog performance

· Dual PGA and 24-bit, 4 kSPS ADCs

ADuCM360/ ADuCM361

Low power precision analog

· 12 multiplexed analog inputs

microcontroller, ARM Cortex-M3 with · 12-bit DAC

dual/single - ADCs

· Digital performance

· 32-bit ARM Cortex-M3 processor

· 128 kB flash, 8 kB SRAM

Power Management

· Wide input voltage range: 4.5 V to 36 V

ADP2441

36 V, 1 A, synchronous step-down dc-to-dc regulator

· Adjustable output down to 0.6 V · High efficiency up to 94%

· ±1% output voltage accuracy

· INL: ±2.5 ppm of FSR · Crosspoint multiplexer (enable system diagnostic) · Internal clock and internal 2.5 V, 2 ppm/°C
reference · Temperature range: -40°C to +105°C · INL: ±2 LSB max · SINAD: 93.5 dB @ 20 kHz · Supply range: 2.3 V to 5.5 V
· Supply range: 3 V to 15 V · Temperature range: ­40°C to +125°C · 8-lead SOIC package · Supply range: 2.7 V to 5.5 V · Temperature range: ­40°C to +125°C · 6-lead SOT-23 package
· Power consumption only 1 mA with core operating at 500 kHz (both ADCs on, input buffers off, PGA gain of 4, one SPI port on, and all timers on)
· Package and temperature · 48-lead LFCSP (7 mm × 7 mm) · ­40°C to +125°C
· Adjustable frequency 300 kHz to 1 MHz · Soft start with tracking, power-good pin, and
overcurrent limit protection

ADP1720

50 mA, high voltage, micropower linear regulator

· Wide input voltage range: 4 V to 28 V · IQ = 74 A @ 1 mA load

· Max output current: 50 mA · Low dropout voltage: 275 mV @ 50 mA load

www.analog.com | 5

Analog Output: Group Isolated Module

COMMUNICATION (FIELDBUS)

BACKPLANE 24V NOMINAL

PROFIBUS RS-485 CAN RS-232

DC-TO-DC CONVERTER LDO
SEQUENCER SUPERVISORY
CONTROLLER

POWER ISOLATION
ERROR AMPLIFIER
DATA ISOLATION

OPTIONAL FIELD SUPPLY 24V NOMINAL

HART MODEM

DC-TO-DC CONVERTER LDO

AMP

DAC REF

AMP AMP AMP

INTEGRATED SOLUTION

OUTPUT PROTECTION
OUTPUT PROTECTION
OUTPUT PROTECTION
OUTPUT PROTECTION

VOLTAGE OUTPUTS ±10V, ±5V, 0V TO 10V, 0V TO 5V
CURRENT OUTPUTS 4mA TO 20mA, ±20mA

Analog Output: Channel-to-Channel Isolated Module

COMMUNICATION (FIELDBUS)

BACKPLANE 24V NOMINAL

DC-TO-DC CONVERTER LDO

POWER ISOLATION

SEQUENCER SUPERVISORY

DATA ISOLATION

PROFIBUS RS-485 CAN RS-232

CONTROLLER

POWER ISOLATION

DATA ISOLATION

LDO REF

DAC

AMP

INTEGRATED SOLUTION
HART MODEM

LDO REF

DAC

AMP

INTEGRATED SOLUTION
HART MODEM

OUTPUT PROTECTION

VOLTAGE OUTPUT ±10V, ±5V, 0V TO 10V, 0V TO 5V
CURRENT OUTPUT 4mA TO 20mA, ±20mA

OUTPUT PROTECTION

VOLTAGE OUTPUT ±10V, ±5V, 0V TO 10V, 0V TO 5V
CURRENT OUTPUT 4mA TO 20mA, ±20mA

Analog Output
Part Number HART Modem

Description

AD5700/AD5700-1 Low power HART modem

6 | Automation Controller Design

Key Features and Benefits

· HART compliant fully integrated FSK modem · On-chip oscillator (AD5700-1) · 4 mm × 4 mm, 24-lead LFCSP

· 1.71 V to 5.5 V power supply · Buffered HART output · Temperature range: -40°C to +125°C

Analog Output (continued)

Part Number

Description

Integrated Output Solution

AD5755-1/AD5755/ Quad-channel,16-bit, 4 mA to 20 mA and

AD5735/AD5757/ voltage output DAC, dynamic power control,

AD5737

HART connectivity

AD5422/AD5412

Single-channel, 12-/16-bit, current source and voltage output DAC, HART connectivity

DAC

AD5683R/AD5681R/ AD5689R/AD5687R/ AD5686R/AD5684R

Single/dual/quad, 16-/12-bit nanoDAC+TM with 2 ppm/°C on-chip reference

AD5668/AD5648/ AD5628
Reference

Octal, 16-/14-/12-bit denseDAC® with on-chip reference

ADR4520/ADR4525/ Ultralow noise, 2 ppm/°C, high accuracy ADR4530/ADR4533/ voltage reference (2.048 V/2.50 V/3.00 V/ ADR4540/ADR4550 3.30 V/4.096 V/5.00 V)

ADR3412/ADR3420, Low power, 10 ppm/°C CMOS voltage

ADR3425/ADR3430, reference

ADR3433/ADR3440, (1.20 V/2.048 V/2.50 V/3.00 V/3.30 V/

ADR3450

4.096 V/5.00 V)

Amplifier/Driver

AD5750/AD5751/ Industrial current/voltage output AD5748/AD5749 driver with programmable ranges

ADA4096-2/ ADA4096-4

30 V, micropower, overvoltage protection, RRIO dual/quad op amps

Power Management

ADP2441

36 V, 1 A, synchronous step-down dc-to-dc regulator

ADP1720

50 mA, high voltage, micropower linear regulator

Key Features and Benefits

· Dynamic power control for thermal management
· 16-bit (AD5755-1, AD5755) and 12-bit (AD5735) options

· ±0.05% FSR max total unadjusted error (TUE) on current outputs
· Current output only versions available (AD5757/AD5737)

· Quad channel

· User programmable offset and gain

· Standard industrial voltage and current output ranges
· ±0.04% FSR max total unadjusted error (TUE) on voltage outputs

· On-chip diagnostics · On-chip reference (±10 ppm/°C maximum) · -40°C to +105°C temperature range · 64-lead LFCSP package (9 mm × 9 mm)

· 16-bit (AD5422) and 12-bit (AD5412) options · Current output only versions available

· Standard industrial voltage and current

(AD5420/AD5410)

output ranges

· On-chip reference (±10 ppm/°C maximum)

· ±0.1% FSR max total unadjusted error (TUE) · Optional regulated DVCC output

on voltage outputs

· 40-lead LFCSP package (6 mm × 6 mm)

· ±0.15% FSR max total unadjusted error (TUE)

on current outputs

· Single (AD5683R/AD5681R), dual (AD5689R/ · Offset error: ±1.5 mV max

AD5687R), or quad (AD5686R/AD5684R) DAC · 1.8 V logic compatibility

· 16-/12-bit resolution

· 8-lead LFCSP (2 mm × 2 mm) or MSOP

· INL: ±2 LSB maximum @ 16 bits

(single)

· On-chip 2.5 V, 5 ppm/°C max reference

· 16-lead LFCSP (3 mm × 3 mm) or TSSOP

· Total unadjusted error (TUE): ±0.1% of FSR

(dual/quad)

max (±0.06% FSR for single)

· Octal DAC: 16-/14-/12-bit resolution

· 16-lead TSSOP/WLCSP/LFCSP

· On-chip 1.25 V/2.5 V, 10 ppm/°C max reference

(4 mm × 4 mm)

· Initial accuracy: 0.02% max

· Supply range: 3 V to 15 V

· Temperature coefficient: 2 ppm/°C max

· Temperature range: ­40°C to +125°C

· Output noise (0.1 Hz to 10 Hz): 1.25 V p-p @ · 8-lead SOIC package VOUT of 2.5 V

· Initial accuracy: 0.1% max

· Supply range: 2.7 V to 5.5 V

· Temperature coefficient: 8 ppm/°C max

· Temperature range: ­40°C to +125°C

· Output noise (0.1 Hz to 10 Hz): 18 V p-p @ · 6-lead SOT-23 package VOUT of 2.5 V

· Standard industrial voltage and current output · 60 V/55 V loop compliance (AD5751, AD5749)

ranges (including ±20 mA)

· On-chip diagnostics

· Current output only version available (AD5749) · Temperature range: ­40°C to +105°C

· ±0.1% FSR max total unadjusted error (TUE) · 32-lead LFCSP package (5 mm × 5 mm) on voltage outputs

· ±0.1% FSR max total unadjusted error (TUE) on current outputs

· Input overvoltage protection, 32 V above and below the supply rails
· No phase reversal for input voltage up to ±32 V beyond the power supply

· Single-supply operation: 3 V to 30 V
· Rail-to-rail input and output swing
· Unity gain bandwidth: 800 kHz typ @ VSY = ±15 V

· Wide input voltage range: 4.5 V to 36 V · Adjustable output down to 0.6 V · High efficiency up to 94% · ±1% output voltage accuracy · Wide input voltage range: 4 V to 28 V · IQ = 74 A @ 1 mA load

· Adjustable frequency 300 kHz to 1 MHz · Soft start with tracking, power-good pin, and
overcurrent limit protection
· Max output current: 50 mA · Low dropout voltage: 275 mV @ 50 mA load

www.analog.com | 7

Isolation, Power, and Communication
Analog Devices offers a wide range of supporting products to meet the various isolation, power, and communications requirements for automation controller design.

Part Number

Description

Key Features and Benefits

Controller

ADSP-BF504/ ADSP-BF504F/ ADSP-BF506F

ADSP-BF50x fixed point DSP

· 400 MHz (800 MMACS) Blackfin® core
· 2 UART, 2 SPI, 2 SPORT, and CAN interfaces for communications

· 32 MB executable flash (ADSP-BF504F/ADSP-BF506F)
· True 12-bit, dual SAR ADC (ADSP-BF506F)

Supervisory (www.analog.com/supervisory)

ADM8323

Supervisory circuit

· Windowed watchdog · Manual reset input

· 5-lead SOT-23 package

ADM6305

Supervisory circuit

· Pretrimmed VCC threshold options · Manual reset input

· 5-lead SOT-23 package

Data Isolation

ADuM3481

3.75 kV rms quad-channel digital isolator

· Small package: 20-lead SSOP · Low dynamic power consumption

· Low voltage I/O: 1.8 V to 5.5 V · 50 year minimum lifetime at 565 V p-p

ADuM1441

· 0.3 µA per channel quiescent current Micropower 2.5 kV rms quad-channel isolator · 148 µA/Mbps per channel typical
dynamic current

· Small package: 16-lead QSOP · 50 year minimum lifetime at 565 V p-p

ADuM1401

2.5 kV rms quad-channel isolator

· 16-lead SOIC wide package

· 50 year minimum lifetime at 565 V p-p

ADuM4401

5 kV rms quad-channel digital isolator

· 16-lead SOIC wide package · Reinforced isolation rating

· 50 year minimum lifetime at 565 V p-p

Power Isolation

ADuM5401

Quad-channel data isolator with integrated dc-to-dc converter

· isoPower® integrated, isolated dc-to-dc converter
· Quad dc-to-25 Mbps (NRZ) signal isolation channels

· 16-lead SOIC package with 7.6 mm creepage · Temperature range: -40°C to +105°C

ADuM3471

Quad-channel data with isolated switching regulators

· Integrated transformer driver · Regulated adjustable output: 3.3 V to 24 V · 2 W output power

· Quad dc-to-25 Mbps (NRZ) signal isolation channels
· 20-lead SSOP package · Temperature range: -40°C to +105°C

ADP1621

Constant frequency, current mode step-up dc-to-dc controller

· 92% efficiency (no sense resistor required)
· ±1.0% initial accuracy · Capable of high supply input voltage (> 5.5 V)
with an external NPN or a resistor

· Programmable operating frequency (100 kHz to 1.5 MHz) with one resistor
· Synchronizable to external clock

Isolated Error Amplifier

ADuM3190

2.5 kV rms isolated error amplifier

· Stable over time and temperature · 0.5% initial accuracy · 1% accuracy over the full temperature range · Bandwidth: 400 kHz

· Low power operation: < 7 mA total · Wide supply voltage range: 3 V to 20 V · Temperature range: -40°C to +125°C · 16-lead QSOP package

Power Management

ADP2441

36 V, 1 A, synchronous step-down dc-to-dc regulator

· Wide input voltage range: 4.5 V to 36 V · Adjustable output down to 0.6 V · High efficiency up to 94% · ±1% output voltage accuracy

· Adjustable frequency 300 kHz to 1 MHz
· Soft start with tracking, power-good pin, and overcurrent limit protection

ADP5050/ADP5051/ Integrated power solution with quad buck ADP5052/ADP5053 regulators

· Wide input voltage range: 4.5 V to 15 V

· 250 kHz to 1.4 MHz adjustable switching

· I2C Interface (ADP5050, ADP5051)

frequency

· 200 mA LDO regulator (ADP5050, ADP5052) · Two programmable 1.2 A/2.5 A/4 A sync buck regulators with low-side FET driver
· Watchdog timer and reset (ADP5051, ADP5053) · Two 1.2 A sync buck regulators

ADP1720

50 mA, high voltage, micropower linear regulator

· Wide input voltage range: 4 V to 28 V · IQ = 74 A at 1 mA load

· Max output current: 50 mA · Low dropout voltage: 275 mV @ 50 mA load

8 | Automation Controller Design

Isolation, Power, and Communication (continued)

Part Number

Description

Key Features and Benefits

PROFIBUS

ADM1486

5 V, high speed, low power, half-duplex RS-485 PROFIBUS® transceiver

· 30 Mbps data rate
· 2.1 V min differential output with 54  termination

· Low power 0.8 mA ICC

ADM2485/ ADM2486

· Fully isolated digital interface

2.5 kV single isolated, high speed, half-duplex · Integrated oscillator driver for external isola-

RS-485 transceiver

tion transformer (ADM2485)

· Half-duplex RS-485 transceiver
· 5 V or 3.3 V operation
· 16 Mbps/20 Mbps data rate (ADM2485/ADM2486)

RS-485

ADM2587E

2.5 kV signal and power isolated, ±15 kV ESD protected, full-/half-duplex RS-485 transceiver 500 kbps

· 500 kbps data rate · Fully Isolated power and data · ±15 kV ESD protection on RS-485 I/O pins

· 5 V or 3.3 V operation
· Open and Short-circuit, fail-safe receiver inputs

ADM2482E

2.5 kV signal isolated, ESD protected, full-/half-duplex RS-485 transceiver with transformer driver 16 Mbps

· 16 Mbps data rate · Fully isolated digital interface · Integrated oscillator driver for external
transformer

· ±15 kV ESD protection on RS-485 I/O pins · 5 V or 3.3 V operation
· Open and Short-circuit, fail-safe receiver inputs

ADM2490E

5 kV signal isolated, high speed (16 Mbps), ESD protected, full-duplex RS-485

· 16 Mbps data rate · Fully isolated digital interface · ±8 kV ESD protection on RS-485 I/O pins

· 5 V or 3.3 V operation · Receiver open circuit, fail-safe design

CAN

ADM3051

High speed industrial CAN transceiver with bus protection for 24 V systems

· High speed data rates up to 1 Mbps · Short-circuit protection on bus pins · Slope control for reduced EMI

· Unpowered nodes do not disturb the bus · Temperature range: -40°C to +125°C

ADM3052

5 kV rms isolated CAN transceiver with integrated high voltage, bus side, linear regulator

· High speed data rates up to 1 Mbps · Fully isolated digital interface · Integrated V+ linear regulator · Bus side powered by V+ and V-

· Short-circuit protection on bus pins · Integrated bus miswire protection · Unpowered nodes do not disturb the bus

ADM3053

2.5 kV rms signal and power isolated CAN transceiver with integrated isolated dc-to-dc converter

· High speed data rates up to 1 Mbps · Fully isolated power and data · Short-circuit protection on bus pins

· Slope control for reduced EMI · Unpowered nodes do not disturb the bus

ADM3054

5 kV rms signal isolated high speed CAN transceiver with bus protection

· High speed data rates up to 1 Mbps · Fully isolated digital interface · Short-circuit protection on bus pins

· Unpowered nodes do not disturb the bus · Able to detect loss of power on bus side · Temperature range: -40°C to +125°C

RS-232

ADM3251E/ ADM3252E

Isolated single-/dual-channel RS-232 line driver/receiver

· 460 kbps data rate · Fully isolated power and data

· 15 kV ESD protection on RIN and TOUT pins

ADM3101E

±15 kV ESD protected, 3.3 V single-channel · 460 kbps data rate

RS-232 line driver/receiver

· Single-channel RS-232 line driver/receiver

· 0.1 F charge pump capacitors

Wireless Communication

ADF7023

High performance, low power, ISM band FSK/GFSK/OOK/MSK/GMSK transceiver IC

· Ultralow power · Frequency bands: 862 MHz to 928 MHz and
431 MHz to 464 MHz · Data rate supported: 1 kbps to 300 kbps

· Flexible firmware programmable system controller and packet processor

ADF7242

Low power IEEE 802.15.4/proprietary GFSK/FSK zero-IF 2.4 GHz transceiver IC

· Frequency range (global ISM band) 2400 MHz to 2483.5 MHz
· Programmable data rates and modulation

· Low power consumption · High sensitivity

www.analog.com | 9

Circuits from the Lab Reference Designs Analog Devices Circuits from the Lab® Reference Designs are engineered and tested by our technology and applications experts to ensure both performance and function. Low cost hardware is available to allow for evaluation and rapid prototyping with several development platforms. Thorough documentation and design files are provided to ease application understanding and minimize system integration issues.
CN0321: Fully Isolated, Single-Channel Voltage and 4 mA to 20 mA Output with HART

18V TO 30V

0.1 F

10nF

4.7 F

AGND VCC BST

VIN

SW

ADP2441

COMP

18 H 5V

32 F

73.3k

PGND

FB

PGOOD FREQ SS/TRK

10k

118k

RFREQ

10nF

180pF

SPI

D1 T1

L1 47 H

COUT1 57 F

REGULATED +15V

D2

L2

47 H D3

D4

LATCH SCLK SDIN SDO
10 F 0.1 F

X1
GND1 VDD1
X2

ADuM3471

VREG GND2 VDD2 FB

VIA VIB VIC VOD VDDA GND1

VOA VOB VOC VID
VOC GND2

100k

COUT2 57 F
0.1 F

UNREGULATED ­15V
R1 93.1k

ADR02

VIN

VOUT

0.1 F

VFB R2 10 F + 8.06k
10 F + 0.1 F

0.1 F

10 F + 0.1 F

BAS70-04LT1

AVDD

AVSS

C3

18

2.2 F

TVS

BAS70-04LT1

26V

AVSS AVDD DVCC

CAP1 DVCC REFIN

SELECT

IOUT

AVDD

LATCH SCLK SDIN SDO

AD5422

+VSENSE
VOUT ­VSENSE

FAULT CLEAR GND CAP2 CCOMP

22

AVSS 22
100
TVS 26V

CURRENT OUTPUT
D5

VOLTAGE OUTPUT

D6

2k

500

4nF

26V TVS:

SMBJ26CA

500

DVCC

10 F

5V
TXD RTS
CD RXD
0.1 F 0.1 F

VDDL1 ADuM3482 VDDL2

GND1 (24-LEAD SSOP) GND2

VIA

VOA

10 F

0.1 F

VIB

VOB

VOC

VIC

VOD

VID

CTRL1

CTRL2

VDD1 VDDC1

VDD2 VDDC2

GND1

GND2

0.1 F 0.1 F

TXD

VCC HART_OUT

RTS

CD RXD

REF

AD5700-1

ADC_IP

AGND DGND

C1 2.2nF

AVDD
C2 22nF

1F 1.2M

300pF

1.2M

AVDD

AVSS

BAS70-04LT1

150k 150pF

UART

Features and Benefits · Voltage and 4 mA to 20 mA output · Fully isolated · HART connectivity

CN0325 circuit diagram. For more information on this reference circuit and details on how to order, visit www.analog.com/cn0321.
10 | Automation Controller Design

CN0325: PLC/DCS Universal Analog Input Using Either 4-Pin or 6-Pin Terminal Block

D1 R2 R3 R1

+15V ­15V
ADG442 S1 S2 S3 S4

IN1 IN2 IN3 IN4

D2 R4

ADT7310

CLK, DIN, DOUT CS_ADT, INT, CT

AVDD

DVDD

0.1mF

0.1 F

5V (AVDD/DVDD)

R5 AD8226 R9 INA1 R10
R6 R7 2.5V
R8
R11

AVDD IOUT1

DVDD

AIN1+
AIN1­ AIN2+ AIN2­

VREF2+ VREF2­ AD7795

P1

IOUT2 VREF1+ VREF1­

CS CLK DIN OUT

GND

ADR441 2.5V

ADP1720 ­15V +15V

ADuM3471

CS_ADT, INT, CT ADuM1311

24V 5V
ADP2441

R2 R3 R1 R13 R12 R4

ADT7310

CS_ADT CLK, DIN, DOUT

AVDD

DVDD

+15V ­15V

0.1 F

0.1 F

5V (AVDD/DVDD)

AD8226
INA1 R6 R7

R9 R10

2.5V

D1

R5

D2

R8

R11

AIN1+ AIN1­

ADR441

ADP1720

VREF2+ 2.5V

­15V +15V

VREF2­

IOUT1

AIN2+ AD7795 AIN2­

ADuM3471

IOUT2 VREF1+ VREF1­
GND

CS CLK DIN OUT
P1

TO SDP_B

Features and Benefits · PLC/DCS universal input module · 4-pin or 6-pin terminal block · Fully isolated · 16-bit - ADC

CN0321 circuit diagram. For more information on this reference circuit and details on how to order, visit www.analog.com/cn0325.

www.analog.com | 11

Circuits from the Lab Reference Designs for Automation Controllers Temperature

Reference Circuit No.

Circuit Description

Functions

CN0287

Fully Isolated 4-Channel, Temperature Measurement Circuit Optimized for Performance, Robustness, and Low Cost

Temperature measurement

CN0172

High Accuracy Multichannel Thermocouple Measurement Solution

Temperature measurement

CN0066

Fully Isolated Input Module Based on the AD7793 24-Bit - ADC and the ADuM5401 Digital Isolator

Temperature measurement

CN0206

Thermocouple Temperature Measurement System with Less Than 500 A Current Draw

Temperature measurement

Input

Reference Circuit No.

Circuit Description

CN0325

PLC/DCS Universal Analog Input Using Either 4-Pin or 6-Pin Terminal Block

CN0209

Software Configurable, Universal Analog Front End for Industrial and Sensor Data Acquisition

CN0067 CN0201

Fully Isolated Input Module Based on the AD7793 24-Bit - ADC, the ADuM5401 Digital Isolator, and a High Performance In-Amp
Complete 5 V, Single-Supply, 8-Channel Multiplexed Data Acquisition System with PGIA for Industrial Signal Levels

CN0310

Precision 24-Bit, 250 kSPS Single-Supply - ADC System for Industrial Signal Levels

CN0213

A Complete High Performance, High Speed Analog Front-End Process Control

CN0225

High Impedance, High CMR, ±10 V Analog Front-End Signal Conditioner for Industrial Process Control and Automation

(continued next page)

Functions Low speed input (< 5 kHz) Low speed input (< 5 kHz) Low speed input (< 5 kHz) High speed input (> 5 kHz) High speed input (> 5 kHz) High speed input (> 5 kHz) High speed input (> 5 kHz)

Features and Benefits
· 4-channel thermocouple/RTD measurements · Fully isolated · Input protection
· 3-channel K-type thermocouple measurement system · Typical temperature range of ­200°C to +1200°C · Highly accurate temperature measurement to 0.25°C · 16-bit digital temperature sensor used for cold
junction compensation
· Fully isolated input module · 24-bit - ADC · Single-supply input circuit · Programmable gain allows detection of small signals
· Typical temperature range of ­200°C to +400°C · T-type thermocouple measurement system · Low power 500 µA max, and low system noise of
0.2 degrees · Single-chip solution with programmable gain and cold
junction compensation · High performance and accuracy
Features and Benefits
· PLC/DCS universal input module · 4-pin or 6-pin terminal block · Fully isolated · 16-bit - ADC
· Complete analog front end for process control · Inputs include RTD, thermocouple, 4 mA to 20 mA, ±10 V · Easily switch between the various input types
· Industrial control input module · 4 mA to 20 mA current inputs and unipolar input voltage · 24-bit of digitally isolated resolution
· Complete 8-channel 16-bit DAS on a single chip · Industrial signal levels up to ±10 V · Single supply
· 24-bit, 250 kSPS ADC system · Industrial signal levels · Single supply
· Optimized for high precision and high common-mode rejection ratio (CMRR)
· Industrial signal levels
· Analog front end for ±10 V inputs · High common-mode rejection · 16-bit resolution · Board space reduction

12 | Automation Controller Design

Circuits from the Lab Reference Designs for Automation Controllers (continued)

Output

Reference Circuit No.

Circuit Description

Functions

CN0321

Fully Isolated, Single-Channel Voltage and 4 mA to 20 mA Output with HART

Fully integrated DAC plus drivers solutions

CN0198 CN0065 CN0278

5 V Regulator Supplies High Transient Current for Dynamic Power Controlled DAC
16-Bit Fully Isolated Output Module Using the AD5422 Single Chip Voltage and Current Output DAC and the ADuM1401 Digital Isolator
Complete 4 mA to 20 mA HART Solution with Additional Voltage Output Capability

Fully integrated DAC plus drivers solutions
Fully integrated DAC plus drivers solutions
Fully integrated DAC plus drivers solutions

CN0203

Flexible PLC and DCS Analog Output Module Only Using Two Analog Components

Low voltage DAC with output driver

CN0204

Flexible, High Voltage, High Accuracy, Low Drift PLC/ DCS Analog Output Module

Low voltage DAC with output driver

CN0229 CN0063 CN0064 CN0179

4-Channel, Flexible, Configurable, Voltage and Current Output Circuit for I/O Card and PLC Applications
16-Bit Fully Isolated Voltage Output Module Using the AD5662 DAC, ADuM1401 Digital Isolator, and External Amplifiers
16-Bit Fully Isolated 4 mA to 20 mA Output Module Using the AD5662 DAC, ADuM1401 Digital Isolator, and External Amplifiers
Less Than 200 mA, Low Power, 4 mA to 20 mA, Process Control Current Loop

Low voltage DAC with output driver
Low voltage DAC with discreet output solution
Low voltage DAC with discreet output solution
Low voltage DAC with discreet output solution

Features and Benefits
· Voltage and 4 mA to 20 mA output · Fully isolated · HART connectivity
· Quad 16-bit 4 mA to 20 mA and voltage output DAC
· Dynamic power control · External 5 V regulator
· Voltage and current output · 16-bit digitally isolated industrial
control output module
· Complete HART compliant solution · 4 mA to 20 mA · Lowest power in industry
· Programmable analog output · 16-bit resolution · 0.1% error with no missing codes · Ideal for PLC output modules
· High voltage, up to 44 V output · Programmable analog output · Galvanic isolation from rest of system · Ideal for PLC and DCS modules
· Quad-channel current and voltage outputs · 16-bit resolution for PLC systems · Digitally isolated from application
· Digitally isolated 16-bit industrial control output module
· Bipolar output voltage
· 4 mA to 20 mA output module · Digitally isolated 16-bit industrial
control output module
· Low power 4 mA to 20 mA current loop · 12-, 14-, or 16-bit digital control · Use in programmable logic controllers

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Online Tools And Resources To learn more about products, signal chain solutions, and technical expertise offered by Analog Devices to help engineers meet today's automation controller challenges, visit www.analog.com/plc_dcs.
Signal Chain Designer--www.analog.com/signalchaindesigner Signal Chain DesignerTM is an advanced product selection and recommendation toolset, bringing together a powerful search engine, verified product recommendations, tested application circuits, and integrated Analog Filter WizardTM and Photodiode Wizard,TM and connects to other Analog Devices engineering tools to provide an easy to use, one stop circuit builder for design engineers.
ADIsimPower--www.analog.com/adisimpower ADIsimPowerTM is a collection of downloadable Excel spreadsheets that produce complete power designs optimized to your design goals. Get a schematic, bill of materials, and performance data customized to your specific needs in minutes. ADIsimDAC -- www.analog.com/adisimdac The purpose of the ADIsimDACTM tool is to assist the user with finding Analog Devices DACs and DAC application circuits. It takes user inputs along with typical parametric data to sort, select, and suggest applicable DACs, system components, and circuits solutions.
Analog Filter Wizard --www.analog.com/filterwizard This online tool simplifies the filter design process with an intuitive user interface and easily accessible tutorials and help.
14 | Automation Controller Design

Online Tools And Resources (continued) To learn more about products, signal chain solutions, and technical expertise offered by Analog Devices to help engineers meet today's automation controller challenges, visit www.analog.com/plc_dcs.
Multisim ADC Component Evaluator, ADI Edition--www.analog.com/multisim The free downloadable version of NI MultisimTM 12.0 is tailored for circuit design with ADI components in a SPICE simulation environment.
Circuits from the Lab Reference Designs For a complete list of Analog Devices Circuits from the Lab Reference Designs for field instrument designs, visit www.analog.com/circuits. EngineerZone® Online Support Community Find answers to your design questions. Join our engineer community at ez.analog.com.
Quality, Reliability, and Product Life Cycle ADI is committed to the establishment and continuous improvement of world class systems and processes aimed at satisfying our customers' evolving needs. For information about our quality and reliability program, visit www.analog.com/quality. For information about product life cycle, visit www.analog.com/product_status_info.
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I2C refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors).

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