Overview
The ADE7758ARWZRL, manufactured by Analog Devices Inc., is a high-accuracy, 3-phase electrical energy measurement IC. This integrated circuit is designed to measure active, reactive, and apparent energy in various 3-phase configurations, including WYE or DELTA services with both three and four wires. The ADE7758 incorporates second-order Σ-Δ ADCs, a digital integrator, reference circuitry, a temperature sensor, and all the necessary signal processing for accurate energy measurements and rms calculations.
Key Specifications
| Parameter | Specification | Unit | Test Conditions/Comments |
|---|---|---|---|
| Operating Voltage | 4.75V to 5.25V | V | |
| Operating Temperature | -40°C to +85°C | °C | |
| Active Energy Measurement Error (per Phase) | 0.1% typical | % | Over a dynamic range of 1000 to 1 |
| On-Chip Reference Voltage | 2.4 V ± 200 mV | V | |
| On-Chip Reference Temperature Coefficient | 30 ppm/°C typical | ppm/°C | |
| Input Clock Frequency | 5 MHz to 15 MHz | MHz | |
| Logic Input High Voltage | 2.4 V min | V | DVDD = 5 V ± 5% |
| Logic Input Low Voltage | 0.8 V max | V | DVDD = 5 V ± 5% |
| Package Type | SOIC-24-300mil |
Key Features
- High accuracy 3-phase electrical energy measurement
- Second-order Σ-Δ ADCs for accurate voltage and current measurements
- Digital integrator and reference circuitry for precise energy calculations
- Temperature sensor for environmental compensation
- SPI-compatible serial interface for data communication
- Interrupt request output (IRQ) for event notification
- Two pulse outputs for active and reactive power information
- System calibration features including rms offset correction, phase calibration, and power calibration
- Detection circuit for short duration low or high voltage variations
- Zero-crossing detection synchronized with the line voltage
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 ADE7758ARWZRL?
The primary function of the ADE7758ARWZRL is to measure active, reactive, and apparent energy in 3-phase electrical systems.
- What type of ADCs does the ADE7758ARWZRL use?
The ADE7758ARWZRL uses second-order Σ-Δ ADCs.
- What is the operating voltage range of the ADE7758ARWZRL?
The operating voltage range is 4.75V to 5.25V.
- What is the temperature range for the ADE7758ARWZRL?
The operating temperature range is -40°C to +85°C.
- Does the ADE7758ARWZRL support system calibration?
- How does the ADE7758ARWZRL communicate data?
The ADE7758ARWZRL communicates data via an SPI-compatible serial interface.
- What is the purpose of the IRQ output on the ADE7758ARWZRL?
The IRQ output is used to notify the system of interrupt events.
- Can the ADE7758ARWZRL detect voltage variations?
- What is the package type of the ADE7758ARWZRL?
The package type is SOIC-24-300mil.
- What are some common applications of the ADE7758ARWZRL?
