Editorial Technical Reference

Metering IC / ASIC

This page explains how Metering IC / ASIC is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Specialized integrated circuit for precise measurement and processing of electrical parameters in energy meters.

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Metering IC / ASIC in a manufacturing environment
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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
ParameterTypical rangeNotes & selection driver
Measurement Accuracy±0.5 %Class 1 meters; higher accuracy availableIEC 62053-21
Operating Voltage Range100–240 V ACSupports single-phase and three-phase systems
Operating Frequency50–60 HzAuto-detects grid frequency
Current Range0.01–100 ADynamic range for CT or shunt sensing
Power Consumption≤0.5 WLow power for battery-operated meters
Operating Temperature Range-40–85 °CIndustrial grade; extended range availableIEC 62053-21
Humidity Range0–95 % RHNon-condensingIEC 60068-2-78
Supply Voltage3.3–5 V DCInternal LDO for stable operation
Interface ProtocolSPI, UART, I2CMultiple options for host communication
Package TypeQFN-32, LQFP-48Small footprint for compact designs
ESD Rating±2 kVHBM modelIEC 61000-4-2
Isolation Voltage4000 V RMSReinforced 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

Application & selection

Application Fit & Sizing Matrix

Operational Limits
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
Media Compatibility
✓ Single-phase/three-phase AC power systems ✓ Current transformer (CT) or shunt-based sensing ✓ Smart grid communication protocols (DLMS/COSEM, Modbus)
Unsuitable: High-voltage direct measurement (>600V) without proper isolation
Sizing Data Required
  • Nominal voltage and current ranges (e.g., 230V, 100A)
  • Required accuracy class and certification standards
  • Communication interface requirements (SPI, I2C, UART)

Risk, maintenance & compliance

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thermal overstress
Cause: Excessive heat generation due to poor thermal management, leading to material degradation, solder joint fatigue, or silicon junction failure.
Electrostatic discharge (ESD) damage
Cause: Accumulation of static electricity during handling or operation, causing immediate or latent failure of sensitive semiconductor components.
Maintenance Indicators
  • Abnormal temperature readings or thermal imaging hotspots on the IC/ASIC package
  • Inconsistent or erratic output signals from the metering function, indicating potential internal circuit degradation
Engineering Tips
  • Implement robust thermal management with proper heatsinking, airflow, and periodic thermal monitoring to prevent overheating.
  • Enforce strict ESD protection protocols during installation, maintenance, and operation, including the use of grounded workstations and antistatic equipment.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
IEC 60747 - Semiconductor devices - Integrated circuits CE Marking - Conformité Européenne for EMC and safety

Quoted from the published standard.

Manufacturing Precision
  • Voltage Reference Accuracy: +/-0.1%
  • Temperature Coefficient: +/-10 ppm/°C
Quality Inspection
  • Electrical Parameter Testing (DC/AC characterization)
  • Environmental Stress Screening (temperature cycling, humidity)
Technical documentation
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Manufacturing capability
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Inspection readiness
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Supplier transparency
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Manufacturers of Metering IC / ASIC

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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. See the editorial policy.

Related equipment

Applied To / Applications

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

Energy Meter
View system integration details

Industrial Ecosystem & Supply Chain Structure

Industry Taxonomies & Aliases

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

Energy Metering IC metering ic

Data Basis

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

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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 12 October 2026

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