Overview
The ADE7878AACPZ-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 active, reactive, and apparent energy in various 3-phase configurations, including wye or delta services with three or 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 serial interfaces such as SPI and I²C, along with a high-speed data capture (HSDC) port for real-time power information access.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | ADE7878AACPZ-RL |
| Package Type | 40-Lead Lead Frame Chip Scale Package (LFCSP) |
| Operating Temperature | −40°C to +85°C |
| Voltage Range | 2.8V to 3.7V |
| ADCs | Seven Σ-Δ analog-to-digital converters |
| Interfaces | SPI, I²C, High-Speed Data Capture (HSDC) port |
| Power Modes | Four modes of operation (PSM0, PSM1, PSM2, PSM3) |
| RoHS Compliance | Yes |
Key Features
- High accuracy 3-phase electrical energy measurement
- Supports measurement of active, reactive, and apparent energy
- Compatible with various 3-phase configurations (wye or delta services with three or four wires)
- Second-order Σ-Δ analog-to-digital converters (ADCs) and a digital integrator
- Fixed function digital signal processor (DSP) for signal processing
- Serial interfaces: SPI, I²C, and high-speed data capture (HSDC) port
- 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 between voltages and currents
- Low power modes to ensure energy accumulation during tampering situations
Applications
- Smart energy meters
- Industrial power monitoring systems
- Automated meter reading (AMR) systems
- Advanced metering infrastructure (AMI) systems
- Power quality monitoring devices
- Energy management systems in commercial and residential settings
Q & A
- What is the primary function of the ADE7878AACPZ-RL?
The primary function of the ADE7878AACPZ-RL is to measure active, reactive, and apparent energy in 3-phase electrical systems with high accuracy.
- What types of 3-phase configurations does the ADE7878AACPZ-RL support?
The device supports wye or delta services with three or four wires.
- What interfaces are available on the ADE7878AACPZ-RL?
The device features SPI, I²C, and a high-speed data capture (HSDC) port.
- How many ADCs does the ADE7878AACPZ-RL have?
The device has seven Σ-Δ analog-to-digital converters.
- What are the operating temperature and voltage ranges for the ADE7878AACPZ-RL?
The operating temperature range is −40°C to +85°C, and the voltage range is 2.8V to 3.7V.
- Does the ADE7878AACPZ-RL support power quality measurements?
Yes, it supports various power quality measurements including low or high voltage detection, high current variation, line voltage period measurement, and phase angles between voltages and currents.
- What are the power modes available on the ADE7878AACPZ-RL?
The device has four modes of operation: PSM0, PSM1, PSM2, and PSM3.
- Is the ADE7878AACPZ-RL RoHS compliant?
Yes, the device is RoHS compliant.
- What is the package type of the ADE7878AACPZ-RL?
The device is packaged in a 40-Lead Lead Frame Chip Scale Package (LFCSP).
- What are some common applications of the ADE7878AACPZ-RL?
Common applications include smart energy meters, industrial power monitoring systems, automated meter reading (AMR) systems, and advanced metering infrastructure (AMI) systems.
