ADEMA124 Series Simultaneously Sampling
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Specifications:
- Fully-featured evaluation board for the ADEMA124 and
ADEMA127 - 3-phase 4-wire, 3-phase 3-wire, or 3-wire single-phase
measurements - PC control in conjunction with the Analysis | Control |
Evaluation (ACE) system demonstration platform - Up to 240Vrms nominal line neutral voltage measurement
Product Usage Instructions:
Evaluation Kit Contents:
The kit includes 2 EVAL-ADEMA127KTZ evaluation boards and
current transformers.
Equipment Needed:
Requires a PC with USB 2.0 port and a USB Micro B cable for
connectivity.
Documents Needed:
Refer to the ADEMA124/ADEMA127 datasheet for full
specifications. Ensure to consult the datasheet along with this
user guide when using the EVAL-ADEMA127KTZ evaluation board.
Hazardous High Voltage:
Exercise caution due to hazardous line voltages. Connect sensors
and voltage leads carefully and enclose the system in a protective
casing.
General Description:
For detailed specifications on ADEMA124/ADEMA127, refer to the
datasheet available from Analog Devices, Inc. The EVAL-ADEMA127
product page contains information on the schematic, PCB, and
BOM.
FAQ:
Q: Can the EVAL-ADEMA127KTZ be used for single-phase
measurements?
A: Yes, the board supports 3-wire single-phase measurements.
Q: What is the maximum voltage that can be measured with this
evaluation board?
A: The board supports up to 240Vrms nominal line neutral voltage
measurement.
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User Guide | EVAL-ADEMA127
UG-2349
Evaluating the ADEMA124/ADEMA127 Simultaneously Sampling 4- and 7-Channel ADC with SPI
FEATURES
Fully-featured evaluation board for the ADEMA124 and ADEMA127
3-phase 4-wire, 3-phase 3-wire, or 3-wire single-phase measurements
PC control in conjunction with the Analysis | Control | Evaluation (ACE) system demonstration platform
Up to 240Vrms nominal line neutral voltage measurement
EVALUATION KIT CONTENTS
2 board EVAL-ADEMA127KTZ evaluation kit Current transformers
EQUIPMENT NEEDED
PC with USB 2.0 port, recommended USB Micro B cable
DOCUMENTS NEEDED
ADEMA124/ADEMA127 data sheet
HAZARDOUS HIGH VOLTAGE
This equipment is connected to hazardous line voltages. Exercise proper caution when connecting the sensors and voltage leads. Ensure that the system is enclosed in a protective casing.
GENERAL DESCRIPTION
The EVAL-ADEMA127KTZ is a two board evaluation kit for the simultaneously sampling 4-channel ADEMA124 and 7-channel ADEMA127 ADC. The EVAL-ADEMA127KTZ evaluation board is a configured as a 3-phase meter. The kit includes current transformers (CTs) for A-, B-, and C-phase and neutral current measurement. The application MCU board includes the STM32H573. The kit can be interfaced with via GUI available in the ACE software environment. The ADC driver library for the ADEMA124/ADEMA127 available on GitHub can also be uploaded to the application MCU board.
Full specifications on the ADEMA124/ADEMA127 are available in the ADEMA124/ADEMA127 data sheet available from Analog Devices, Inc. and must be consulted with this user guide when using the EVAL-ADEMA127KTZ evaluation board.
For the current schematic, printed circuit board (PCB), and bill of material (BOM), refer to the EVAL-ADEMA127 product page.
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS.
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TABLE OF CONTENTS
Features………………………………………………………. 1 Evaluation Kit Contents………………………………….. 1 Equipment Needed…………………………………………1 Documents Needed………………………………………..1 Hazardous High Voltage………………………………….1 General Description………………………………………..1 EVAL-ADEMA127KTZ Evaluation Board
Photograph…………………………………………………. 3
REVISION HISTORY
7/2025–Revision 0: Initial Version
EVAL-ADEMA127
Evaluation Board Hardware……………………………..4 Current Sensors…………………………………………. 4 Voltage Sensors…………………………………………. 4 Powering the EVAL-ADEMA127KTZ………………4
Evaluation Board Software……………………………… 5 ADC Service……………………………………………….6
Getting Started……………………………………………… 7
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EVAL-ADEMA127KTZ EVALUATION BOARD PHOTOGRAPH
EVAL-ADEMA127
Figure 1. EVAL-ADEMA127KTZ Evaluation Board Photograph
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EVALUATION BOARD HARDWARE
CURRENT SENSORS
The EVAL-ADEMA127KTZ is designed to work directly with the provided current output CTs. Connect the CT leads to the P2, P3, P4, and P5 terminal blocks.
The EVAL-ADEMA127KTZ has on-board burden resistors in the differential configuration to allow direct connection with current output CTs. The burden resistors may be modified for different current ranges.
VOLTAGE SENSORS
The EVAL-ADEMA127KTZ has on-board resistor dividers to attenuate the incoming input voltage. Do not exceed the 240Vrms nominal line to neutral voltage in the 3-phase, 4-wire (3P4W) wye configuration. In the 3wire delta configuration, when Phase B is used as the reference, do not exceed 250Vrms line-to-line voltage.
There are 4mm banana jacks on board to connect the voltage inputs. Use TPI A079 or equivalent leads with alligator clips to connect the voltage inputs.
EVAL-ADEMA127
POWERING THE EVAL-ADEMA127KTZ The EVAL-ADEMA127KTZ is powered by default via USB through the P7 micro-USB port. Power is distributed through the application MCU board to the daughter board below. The EVAL-ADEMA127KTZ may alternatively be powered via 6V to 15V supply via P1 connector. The position of the jumper on the 5V0_SELECT connector must also be adjusted.
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EVALUATION BOARD SOFTWARE
The evaluation board is compatible with ACE software. The EVAL-ADEMA127KTZ used the CP2102N-A02 USB-to-UART bridge for communication with the Windows® PC. Download and install the CP2102N-A02 driver from the Silicon Labs website. Once the Silicon Labs drivers are installed, plug in the EVAL-ADEMA127KTZ and open Device Manager on the PC. Note the COM number assigned to the Silicon Labs CP210x USB-to-UART Bridge. The example shown in Figure 2 is assigned to COM5. Install the ACE software from here.
EVAL-ADEMA127
Install the Chip.ADEMA127 package from the ADC Plug-In Manager. Once installation completes, configure the EVAL-ADEMA127KTZ. From the ACE Home tab, click Add Hardware. The EVAL-ADEMA127KTZ is configured as a serial ports. The Number field is the COM port number attained from the Windows Device Manager for the Silicon Labs CP210x USB-to-UART Bridge. The required Baudrate is 921600, the Buffer Size 64, and the Protocol is IIO, as shown in Figure 3.
Figure 2. Device Manager
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Figure 3. ACE Configuration of EVAL-ADEMA127KTZ
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EVALUATION BOARD SOFTWARE
ADC SERVICE For more details on the ADC drivers for the ADEMA124/ADEMA127 and specific information related the applications MCU board, refer to the App MCU Board: Build and Run Instructions.
EVAL-ADEMA127
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GETTING STARTED
For instructions on getting started with both the EVAL-ADEMA127KTZ evaluation kit and the ACE software plug-in, refer to the ADEMA127 ACE Plug-In User’s Guide.
EVAL-ADEMA127
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 One Analog Way, Wilmington, MA 01887-2356, U.S.A. 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.
©2025 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. One Analog Way, Wilmington, MA 01887-2356, U.S.A.
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Documents / Resources
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ANALOG DEVICES ADEMA124 Series Simultaneously Sampling [pdf] User Guide ADEMA124 Series Simultaneously Sampling, ADEMA124 Series, Simultaneously Sampling, Sampling |