Accelerate your Advanced Metering Infrastructure (AMI) implementation. TI’s broad portfolio enables high-accuracy energy and flow measurements across wide operating conditions, with the low power consumption, comprehensive connectivity, and robust performance needed to meet global energy metering standards.

Why choose TI for your smart meter design?

Solutions for every metering function

Connectivity across wide communications standards

Security against evolving physical and digital threats

Current sensing technologies in E-metering

E-metering made more flexible and compact with PCB Rogowski technology 

Rogowski coils are toroidal air-cored sensors used to measure alternating current. They can be manufactured in several geometries—including full toroids, helical coils, and most importantly, PCB-based coils. Because they offer excellent flexibility, compact size, and broad customizability, Rogowski coils have become widely used in modern metering systems. They deliver strong performance in demanding environments, including high-voltage and high-current applications across wide frequency ranges.


Application brief

Benefits of Switching to Rogowski Coil in E-Metering

This application note outlines each sensor type and explains how these impact system performance to help designers select the most preferred current-sensing solution for the meter architecture.
Reference design

Signal conditioning for Rogowski coil reference design

Signal conditioning circuit for PCB Rogowski, targeting enhanced accuracy and ANSI compliance
Reference design

ADS131M08 metrology evaluation module

Using the ADS131M08 and the MSPM0G1506 Chipset acheive class 0.1 three-phase energy measurements based on IEC-62053, EN 50470 and ANSI C12 test methods.

INA828ACTIVE

50-μV Offset, 7-nV/√Hz Noise, Low-Power, Precision Instrumentation Amplifier

TLV9001ACTIVE

One-channel, 1-MHz rail-to-rail input and output 1.8-V to 5.5-V operational amplifier

ADS131M08ACTIVE

24-bit, 32-kSPS, 8-channel, simultaneous-sampling, delta-sigma ADC

Design compact shunt resistor solutions with TI's isolated data converters

Cost effective meters typically use shunt resistor for current sensing due to the straightforward working principle, low cost, and compact profile. Shunt resistors provide excellent linearity, fast response, and stable performance over a wide range of current levels. Shunt-based sensing enables accurate measurement without magnetic components, eliminating issues such as saturation and hysteresis commonly found in magnetic sensors.


Application brief

Shunt Resistor Selection for Isolated Data Converters

A detailed, step-by-step guide to selecting the optimal shunt resistor for isolated data converters, along with key design considerations and best practices for using shunt resistors in measurement systems.
Resource

AMC130M02 evaluation module

Single-phase energy meter using standalone isolated multichannel analog to-digital converters (ADCs) to sample a shunt current sensor. The evaluation module (EVM) achieves 0.5% accuracy across the input range (50mA–15A)
Reference design

Three-phase shunt-based energy metrology reference design

Class 0.2S three-phase energy measurement using an isolated high-performance, multichannel analog-to-digital converter (ADC), which samples shunt current sensors at 4kHz to measure current and voltage.

AMC131M02ACTIVE

24-bit, 32-kSPS, 2-channel, simultaneous-sampling, delta-sigma ADC

ISOUSB211ACTIVE

Low-emission isolated USB repeater supporting low, high and full speed

MSPM0G5187ACTIVE

80MHz Arm® Cortex®-M0+ MCU with 128kB flash, 32kB SRAM, USB 2.0 FS, I2S, ADC and TinyEngine™ NPU

Current transformers (CTs) offer high accuracy, excellent linearity, and reliable performance across a wide current and temperature ranges, making them preferred for precision metering applications. They provide galvanic isolation to protect electronic component, and have low power losses.


Resource

ADS131M08 metrology evaluation module

Using the ADS131M08 and the MSPM0G1506 Chipset acheive class 0.1 three-phase energy measurements based on IEC-62053, EN 50470 and ANSI C12 test methods.
Reference design

Three-phase current transformer e-meter reference design with standalone ADC

This reference design implements Class 0.1 three-phase energy measurement using a high-performance multichannel analog-to-digital converters (ADC).

ADS131M08ACTIVE

24-bit, 32-kSPS, 8-channel, simultaneous-sampling, delta-sigma ADC

MSPM0G3507ACTIVE

80MHz Arm® Cortex®-M0+ MCU with 128KB flash 32KB SRAM 2x4Msps ADC, DAC, 3xCOMP, 2xOPA, CAN-FD, MATHA

Design & development resources

Software development kit (SDK)

MSPM0 software development kit (SDK)

The MSPM0 SDK provides the ultimate collection of software, tools and documentation to accelerate the development of applications for the MSPM0 MCU platform under a single software package.

Evaluation board

ADS131M08 metrology evaluation module

The ADS131M08MET evaluation module (EVM) uses the ADS131M08 and the MSPM0G1506SRHB to realize class 0.1 three-phase energy measurements based on IEC-62053, EN 50470 and ANSI C12 test methods. The ADS131M08 samples at 8kHz to measure the output of current transformers (CT) or Rogowski Coils (RC) (...)
Reference design

Rogowski coil current sensor reference design

This reference design enables end users to evaluate PCB Rogowski coils of different sizes and sensitivities for a wide range of current-sensing applications. The design supports low and high current measurements up to 500A, high precision at 0.2%, and wide bandwidth sensing exceeding 1MHz. The (...)


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Reference designs related to Smart meter

Use our reference design selection tool to find designs that best match your application and parameters.

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50-μV Offset, 7-nV/√Hz Noise, Low-Power, Precision Instrumentation Amplifier

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