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The ADE7953ACPZ is a high-precision energy metering IC primarily designed for single-phase applications. It measures line voltage and current, and calculates active, reactive, and apparent power, as well as instantaneous root-mean-square (RMS) voltage and current.

The device integrates three Σ-Δ ADCs and a high-precision energy metering core. The third input channel can simultaneously measure neutral line current, supporting theft detection and neutral line current billing. The additional channel integrates a complete signal path, enabling various measurements. Each input channel supports independent and flexible gain stages, making the device suitable for use with various current sensors, such as current transformers (CTs) and low-resistance shunt resistors. Two on-chip integrators facilitate the use of Rogowski coil sensors.

The ADE7953ACPZ can access on-chip metering registers via multiple communication interfaces, including SPI, I2C, and UART. Two configurable low-jitter pulse output pins provide outputs proportional to active, reactive, or apparent power, as well as current and voltage root mean square (RMS) values. Comprehensive power quality information, such as overcurrent, overvoltage, peak, and sag detection, can be obtained via an external IRQ pin. The device includes independent active, reactive, and apparent no-load detection functions to prevent meter ‘creeping.’ Additionally, dedicated reverse power (REVP), zero-crossing voltage (ZX), and zero-crossing current (ZX_I) pins are provided. The ADE7953ACPZ energy metering IC operates on a 3.3V power supply and is available in a 28-pin LFCSP package.

ADE7953ACPZ Features

High accuracy; compliant with EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22, and IEC 62053-23 standards

Measures active, reactive, and apparent power, samples waveforms, and calculates the root mean square (RMS) values of current and voltage

Provides a second current input for neutral current measurement

Within a dynamic range of 3000:1, the measurement error for active and reactive power is less than 0.1%

Within a dynamic range of 1000:1, measurement error for instantaneous current and voltage RMS values is less than 0.2%  

Provides apparent power measurement and instantaneous power readings  

Bandwidth: 1.23 kHz  

Flexible PGA gain stage (up to 22x)  

Built-in integrator for Rogowski coils  

SPI, I2C, or UART communication

ADE7953ACPZ Parameters

Measurement error: 0.1%  

Voltage - I/O high: 2.4V  

Voltage - I/O low: 0.4V  

Current - supply: 7mA  

Voltage - supply: 3 V to 3.6 V  

Meter type: Single-phase  

Operating Temperature: -40°C to 85°C  

Mounting Type: Surface Mount  

Package/Case: 28-WFQFN Bare Pad, CSP  

Supplier Device Package: 28-LFCSP-WQ (5x5)

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  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

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  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

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