Overview
The ADE7854AACPZ-RL, produced by Analog Devices Inc., is a high-accuracy, 3-phase electrical energy measurement IC. This device is part of the ADE7854A/ADE7858A/ADE7868A/ADE7878A family and is designed for precise measurement of electrical energy in various 3-phase configurations, including wye or delta services with three and four wires.
It incorporates second-order Σ-Δ analog-to-digital converters (ADCs), a digital integrator, reference circuitry, and a fixed function digital signal processor (DSP) for comprehensive signal processing. The device supports total active, reactive, and apparent energy measurements, as well as rms calculations and power quality monitoring.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | WFQFN-40 |
| Operating Voltage | 2.8V to 3.7V |
| Current Consumption | 20mA |
| ADC Type | Second-order Σ-Δ ADC |
| ADC Resolution | 24-bit signed output |
| Sampling Clock | 1.024 MHz (CLKIN/16) |
| Serial Interfaces | SPI and I²C |
| Power Measurement | Total active, reactive, and apparent energy |
| RMS Measurements | Updated every 8 kHz and averaged internally every 1.024 sec |
Key Features
- High accuracy 3-phase electrical energy measurement
- Supports wye or delta services with three and four wires
- Second-order Σ-Δ analog-to-digital converters (ADCs)
- Digital integrator and reference circuitry
- Fixed function digital signal processor (DSP) for signal processing
- Three flexible pulse outputs (CF1, CF2, CF3)
- System calibration features: rms offset correction, phase calibration, and gain calibration
- Power quality measurements: low or high voltage detection, high current variation, line voltage period measurement, and phase angles
- SPI and I²C serial interfaces
Applications
- Smart Energy Meters
- Industrial Power Monitoring Systems
- Automated Meter Reading (AMR) Systems
- Advanced Metering Infrastructure (AMI) Systems
- Power Quality Analyzers
- Energy Management Systems
Q & A
- What is the primary function of the ADE7854AACPZ-RL?
The primary function is to measure 3-phase electrical energy with high accuracy, including active, reactive, and apparent energy.
- What types of 3-phase configurations does the ADE7854AACPZ-RL support?
It supports wye or delta services with both three and four wires.
- What type of ADC does the ADE7854AACPZ-RL use?
It uses second-order Σ-Δ analog-to-digital converters (ADCs).
- What are the serial interfaces available on the ADE7854AACPZ-RL?
The device supports SPI and I²C serial interfaces.
- What power quality measurements can the ADE7854AACPZ-RL perform?
It can measure low or high voltage detection, high current variation, line voltage period, and angles between phase voltages and currents.
- How often are the RMS measurements updated?
RMS measurements are updated every 8 kHz and averaged internally every 1.024 seconds.
- Does the ADE7854AACPZ-RL support system calibration?
Yes, it supports rms offset correction, phase calibration, and gain calibration for each phase.
- What is the operating voltage range of the ADE7854AACPZ-RL?
The operating voltage range is 2.8V to 3.7V.
- What is the current consumption of the ADE7854AACPZ-RL?
The current consumption is approximately 20mA.
- What package type does the ADE7854AACPZ-RL come in?
The device comes in a WFQFN-40 package.
