Overview
The ADE7752ARZ, produced by Analog Devices Inc., is a high-accuracy polyphase electrical energy measurement IC. This component is designed for use in 3-phase distribution systems and provides both instantaneous and average real power measurements based on line current and voltage. The ADE7752ARZ is available in a 24-lead SOIC package and is known for its superior stability and accuracy over a wide range of environmental conditions and time.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage (VDD) | 4.75 V to 5.25 V |
| Supply Current (IDD) | 12 mA (ADE7752), 6 mA (ADE7752A) |
| Operating Temperature | -40°C to 85°C |
| Package Type | 24-lead SOIC |
| Measurement Error | Less than 0.1% over a dynamic range of 500 to 1 |
| Frequency Outputs | F1, F2 for average real power; CF for instantaneous real power |
| Logic Output High Voltage (VOH) | 4.5 V (F1, F2), 4 V (CF, REVP) at VDD = 5 V |
| Logic Output Low Voltage (VOL) | 0.5 V at VDD = 5 V |
Key Features
- High accuracy, supporting 50 Hz/60 Hz IEC62053-2x standards with less than 0.1% error over a dynamic range of 500 to 1.
- Compatible with 3-phase/3-wire delta and 3-phase/4-wire Wye configurations.
- Provides average real power on frequency outputs F1 and F2, and instantaneous real power on output CF.
- Logic output REVP indicates potential miswiring or negative power for each phase.
- Direct drive for electromechanical counters and 2-phase stepper motors (F1 and F2).
- Proprietary ADCs and DSP for high accuracy over large environmental variations.
- On-chip power supply monitoring and creep protection (no load threshold).
- On-chip reference 2.4 V ±8% (20 ppm/°C typical) with external overdrive capability.
Applications
The ADE7752ARZ is suitable for various energy measurement applications, including:
- Smart grid systems.
- Retail and commercial energy meters.
- Industrial power monitoring systems.
- Renewable energy systems.
- Automated meter reading (AMR) and advanced metering infrastructure (AMI) systems.
Q & A
- What is the primary function of the ADE7752ARZ?
The primary function of the ADE7752ARZ is to measure and provide accurate real power information in 3-phase electrical systems. - What are the supported frequency standards for the ADE7752ARZ?
The ADE7752ARZ supports 50 Hz/60 Hz IEC62053-2x standards. - What is the measurement error of the ADE7752ARZ?
The measurement error is less than 0.1% over a dynamic range of 500 to 1. - What types of configurations is the ADE7752ARZ compatible with?
The ADE7752ARZ is compatible with 3-phase/3-wire delta and 3-phase/4-wire Wye configurations. - What are the logic output voltages for the ADE7752ARZ?
The logic output high voltage is 4.5 V for F1 and F2, and 4 V for CF and REVP at VDD = 5 V. The logic output low voltage is 0.5 V. - Does the ADE7752ARZ have on-chip power supply monitoring?
Yes, the ADE7752ARZ includes on-chip power supply monitoring. - What is the purpose of the CF output?
The CF output provides instantaneous real power information and is intended for calibration purposes. - Can the ADE7752ARZ drive electromechanical counters directly?
Yes, the ADE7752ARZ can directly drive electromechanical counters and 2-phase stepper motors using outputs F1 and F2. - What is the operating temperature range of the ADE7752ARZ?
The operating temperature range is -40°C to 85°C. - What package type is the ADE7752ARZ available in?
The ADE7752ARZ is available in a 24-lead SOIC package.
