Overview
The ADE7858AACPZ from Analog Devices Inc. is a high-accuracy, polyphase multifunction energy metering IC designed for precise measurement of electrical energy in various 3-phase configurations. This IC incorporates second-order Σ-Δ analog-to-digital converters (ADCs), a digital integrator, reference circuitry, and a fixed function digital signal processor (DSP) to perform total active, reactive, and apparent energy measurements, as well as rms calculations. It supports both three and four wire services in wye or delta configurations and complies with several international standards such as EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22, and IEC 62053-23.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 40-lead, Pb-free LFCSP |
| Supply Voltage - Min | 3.3 V |
| Supply Voltage - Max | 3.3 V |
| Minimum Operating Temperature (°C) | -40 |
| Maximum Operating Temperature (°C) | +85 |
| Resolution | 24 bit |
| Number of Channels | 6 Channel |
| Sampling Rate | 8 kS/s |
| Interface Type | SPI, I2C, HSDC |
| Input Type | Analog |
| Number of ADCs | 7 ADC |
Key Features
- High accuracy measurements of active, reactive, and apparent energy in 3-phase configurations.
- Supports both three and four wire services in wye or delta configurations.
- Second-order Σ-Δ analog-to-digital converters (ADCs) and a digital integrator for precise measurements.
- Fixed function digital signal processor (DSP) for signal processing.
- Three flexible pulse outputs (CF1, CF2, CF3) providing various power information.
- System calibration features including rms offset correction, phase calibration, and gain calibration.
- Power quality measurements such as short duration low or high voltage detection, high current variation, line voltage period measurement, and angles between phase voltages and currents.
- Dual serial interfaces (SPI and I2C) and a high speed data capture (HSDC) port for real-time data access.
- Two interrupt request pins (IRQ0 and IRQ1) for event indication.
Applications
- Smart energy meters and advanced metering infrastructure (AMI).
- Industrial power monitoring and control systems.
- Building automation and energy management systems.
- Grid management and power quality monitoring systems.
- Automotive and aerospace power monitoring applications.
Q & A
- What is the primary function of the ADE7858AACPZ?
The primary function of the ADE7858AACPZ is to measure active, reactive, and apparent energy in 3-phase electrical systems with high accuracy.
- What types of 3-phase configurations does the ADE7858AACPZ support?
The ADE7858AACPZ supports both three and four wire services in wye or delta configurations.
- What is the resolution of the ADCs in the ADE7858AACPZ?
The resolution of the ADCs is 24 bits.
- What are the supported serial interfaces for the ADE7858AACPZ?
The supported serial interfaces are SPI, I2C, and a high speed data capture (HSDC) port.
- Does the ADE7858AACPZ have any power quality measurement features?
- What is the operating temperature range of the ADE7858AACPZ?
The operating temperature range is from -40°C to +85°C.
- What is the sampling rate of the ADCs in the ADE7858AACPZ?
The sampling rate is 8 kS/s.
- Does the ADE7858AACPZ have any calibration features?
- What package type is the ADE7858AACPZ available in?
The ADE7858AACPZ is available in a 40-lead, Pb-free LFCSP package.
- Are there any development kits available for the ADE7858AACPZ?
