Overview
The ADE7752AARZ-RL, 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 ADE7752A is a pin-to-pin compatible low power version of the ADE7752, offering the same functionality but with reduced power consumption. The device adheres to the accuracy requirements of the IEC62053-2x standard and is suitable for various energy metering applications.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| VDD Supply Voltage | 4.75 V to 5.25 V | For specified performance |
| IDD Supply Current | 12 mA to 16 mA (ADE7752), 6 mA to 9 mA (ADE7752A) | VDD = 5 V ± 5% |
| Output High Voltage (F1, F2) | 4.5 V | ISOURCE = 10 mA, VDD = 5 V |
| Output Low Voltage (F1, F2) | 0.5 V | ISINK = 10 mA, VDD = 5 V |
| Output High Voltage (CF, REVP) | 4 V | VDD = 5 V, ISOURCE = 5 mA |
| Output Low Voltage (CF, REVP) | 0.5 V | VDD = 5 V, ISINK = 5 mA |
| Package Type | 24-lead SOIC |
Key Features
- High accuracy, supports 50 Hz/60 Hz IEC62053-2x 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 CF output.
- 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 provide high accuracy over large variations in environmental conditions and time.
- 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.
- Single 5 V supply, low power consumption (60 mW typical for ADE7752, 30 mW typical for ADE7752A).
Applications
The ADE7752AARZ-RL is suitable for a variety of energy metering applications, including:
- 3-phase energy meters
- Smart grid systems
- Industrial power monitoring
- Automated meter reading (AMR) systems
- Advanced metering infrastructure (AMI) systems
Q & A
- What is the primary function of the ADE7752AARZ-RL?
The primary function is to measure and provide both instantaneous and average real power in 3-phase distribution systems. - What are the supported frequencies for the ADE7752AARZ-RL?
The device supports 50 Hz and 60 Hz frequencies as per IEC62053-2x standards. - What is the accuracy of the ADE7752AARZ-RL?
The device has an accuracy of less than 0.1% over a dynamic range of 500 to 1. - What types of configurations does the ADE7752AARZ-RL support?
The device supports 3-phase/3-wire delta and 3-phase/4-wire Wye configurations. - How does the ADE7752AARZ-RL indicate potential miswiring or negative power?
The device uses the REVP logic output to indicate potential miswiring or negative power for each phase. - What is the typical power consumption of the ADE7752AARZ-RL?
The typical power consumption is 60 mW for the ADE7752 and 30 mW for the ADE7752A. - What package type is the ADE7752AARZ-RL available in?
The device is available in a 24-lead SOIC package. - Does the ADE7752AARZ-RL have on-chip power supply monitoring?
Yes, the device includes on-chip power supply monitoring. - What is the purpose of the CF output in the ADE7752AARZ-RL?
The CF output provides instantaneous real power information and is intended for calibration purposes. - Can the ADE7752AARZ-RL drive electromechanical counters directly?
Yes, the device can directly drive electromechanical counters and 2-phase stepper motors using the F1 and F2 outputs.
