Smart meter
Design reliable and accurate smart meter systems with our sensing, metrology and communications solutions for electricity meters, water meters and gas meters
Why choose TI for your smart meter design?
High-accuracy analog front-end for all sensor types
Shunt, current transformer, Rogowski coil and hall current sensor solutions supported with isolated and non-isolated delta-sigma ADCs with scalable number of channels.
Metrology library tested to meet UL and IEC standards
MSPM0-based electricity meter metrology library has been tested to meet the latest UL and IEC standards for revenue grade accuracy across single, split, and 3-phase meters.
Accelerate your design with reference designs
Wide catalog of smart meter reference designs for a range of sensors and phases to quickly get started with design and evaluation.
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.
Benefits of Switching to Rogowski Coil in E-Metering
Signal conditioning for Rogowski coil reference design
ADS131M08 metrology evaluation module
Featured products for Rogowski coil
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.
Shunt Resistor Selection for Isolated Data Converters
AMC130M02 evaluation module
Three-phase shunt-based energy metrology reference design
Featured products for Shunt resistors
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.
ADS131M08 metrology evaluation module
Three-phase current transformer e-meter reference design with standalone ADC
Featured products for current transformers
Design & development resources
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.
ADS131M08 metrology evaluation module
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 (...)