Metering IC / ASIC for Energy Meters | Precision Measurement Component

Product Specifications

Technical details and manufacturing context for Metering IC / ASIC

Definition

A Metering IC or Application-Specific Integrated Circuit (ASIC) is a specialized semiconductor component engineered specifically for energy metering applications. It serves as the core processing unit within an energy meter, responsible for accurately measuring voltage, current, power, and energy consumption. The IC performs complex calculations, data processing, and communication functions while maintaining high precision and reliability required for billing-grade metering. This component is designed for use in single-phase and three-phase systems, with an operating voltage range of 100–240 V AC and a frequency range of 50–60 Hz. It supports a current range of 0.01–100 A, suitable for current transformer (CT) or shunt sensing. The measurement accuracy is ±0.5% for Class 1 meters, with higher accuracy options available, per IEC 62053-21. The device operates over a temperature range of -40 to 85 °C and a humidity range of 0–95% RH (non-condensing), meeting IEC 60068-2-78. It has a low power consumption of ≤0.5 W, making it suitable for battery-operated meters. The supply voltage is 3.3–5 V DC, with an internal LDO for stable operation. Communication is supported via SPI, UART, or I2C interfaces. The IC is available in compact packages such as QFN-32 and LQFP-48. It features an ESD rating of ±2 kV (HBM) per IEC 61000-4-2 and an isolation voltage of 4000 V RMS per IEC 62052-31, ensuring reinforced insulation for safety. The component is manufactured using silicon semiconductor technology with copper interconnects and dielectric materials. As a directory listing, the values and standards provided are reference ranges that must be verified with the legal manufacturer or supplier for the specific model and application.

Working Principle

The Metering IC/ASIC operates by sampling analog voltage and current signals from sensors, converting them to digital data through high-resolution ADCs, and processing this data using specialized algorithms to calculate electrical parameters. It typically includes digital signal processing (DSP) cores, calibration circuits, and communication interfaces to provide accurate energy measurement and data transmission. The device auto-detects grid frequency and supports both single-phase and three-phase configurations. It is designed for use with CT or shunt sensing, and its internal LDO ensures stable operation across the specified supply voltage range. The IC's low power consumption enables battery-operated meters, while its robust ESD and isolation ratings ensure reliable performance in industrial environments.

Common Materials

Silicon semiconductor, Copper interconnects, Dielectric materials

Technical Parameters

Parameter	Typical range	Notes & selection driver
Measurement Accuracy	±0.5 %	Class 1 meters; higher accuracy availableIEC 62053-21
Operating Voltage Range	100–240 V AC	Supports single-phase and three-phase systems
Operating Frequency	50–60 Hz	Auto-detects grid frequency
Current Range	0.01–100 A	Dynamic range for CT or shunt sensing
Power Consumption	≤0.5 W	Low power for battery-operated meters
Operating Temperature Range	-40–85 °C	Industrial grade; extended range availableIEC 62053-21
Humidity Range	0–95 % RH	Non-condensingIEC 60068-2-78
Supply Voltage	3.3–5 V DC	Internal LDO for stable operation
Interface Protocol	SPI, UART, I2C	Multiple options for host communication
Package Type	QFN-32, LQFP-48	Small footprint for compact designs
ESD Rating	±2 kV	HBM modelIEC 61000-4-2
Isolation Voltage	4000 V RMS	Reinforced insulation for safetyIEC 62052-31

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Analog Front End (AFE)
Conditions and digitizes analog voltage and current signals from sensors

Material: Semiconductor circuits
Digital Signal Processor (DSP)
Processes digitized signals to calculate power, energy, and other electrical parameters

Material: Semiconductor logic circuits
Calibration Circuitry
Provides precision calibration capabilities for accurate measurement

Material: Semiconductor circuits with precision components
Communication Interface
Enables data exchange with external systems via various protocols

Material: Semiconductor I/O circuits
Power Management Unit
Regulates and manages power supply to different sections of the IC

Material: Semiconductor power circuits

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Metering IC / ASIC.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Energy Meter

View system integration details

Manufacturers of Metering IC / ASIC

Manufacturer profiles associated with Metering IC / ASIC.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 6 September 2026

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

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Manufacturing capability

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Frequently Asked Questions

What is the measurement accuracy of this metering IC?

The reference accuracy is ±0.5% for Class 1 meters, with higher accuracy options available. This is per IEC 62053-21. Always verify the exact accuracy for the specific model with the manufacturer.

What voltage and frequency ranges does it support?

It supports an operating voltage range of 100–240 V AC and a frequency range of 50–60 Hz, with auto-detection of grid frequency. These are reference values; confirm for your application.

What communication interfaces are available?

The IC supports SPI, UART, and I2C interfaces for host communication. The specific interface options may vary by package and model, so check the datasheet.

What are the environmental limits?

The operating temperature range is -40 to 85 °C, and the humidity range is 0–95% RH (non-condensing) per IEC 60068-2-78. These are reference values; verify with the manufacturer for your use case.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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temperature:	-40°C to +125°C (industrial grade)
sampling rate:	Up to 8kSPS simultaneous sampling
voltage range:	2.7V to 5.5V supply, 0V to Vref analog input
accuracy class:	Class 0.2S/0.5S per IEC 62053-22

Metering IC / ASIC

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards