Overview
The ADE7752AARZ is a high-accuracy polyphase electrical energy measurement IC produced by Analog Devices Inc. This component is designed to support 3-phase electrical energy metering with high precision and reliability. It is a pin-to-pin compatible, low-power version of the ADE7752, offering the same functionality but with reduced power consumption. The ADE7752AARZ is particularly suited for applications requiring accurate energy measurement in various environmental conditions.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage (VDD) | 4.75 V to 5.25 V |
| Supply Current (IDD) | 6 mA to 9 mA (typical 30 mW at 5 V) |
| Package Type | 24-lead SOIC |
| Operating Frequency | Supports 50 Hz/60 Hz IEC62053-2x |
| Error Over Dynamic Range | Less than 0.1% over a dynamic range of 500 to 1 |
| 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 |
| On-chip Reference Voltage | 2.4 V ±8% (20 ppm/°C typical) |
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 information 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.
- Proprietary ADCs and DSP for high accuracy over large variations in environmental conditions and time.
- On-chip power supply monitoring and creep protection.
- Single 5 V supply with low power consumption (typical 30 mW).
Applications
The ADE7752AARZ is widely used in various energy metering applications, including:
- Smart energy meters for residential and commercial use.
- Industrial power monitoring systems.
- Automated meter reading (AMR) systems.
- Advanced metering infrastructure (AMI) systems.
- Energy management systems in buildings and factories.
Q & A
- What is the primary function of the ADE7752AARZ?
The primary function of the ADE7752AARZ is to measure electrical energy in 3-phase systems with high accuracy. - What are the supported operating frequencies for the ADE7752AARZ?
The ADE7752AARZ supports 50 Hz and 60 Hz frequencies, complying with IEC62053-2x standards. - What is the typical power consumption of the ADE7752AARZ?
The typical power consumption of the ADE7752AARZ is 30 mW at a 5 V supply voltage. - What types of configurations does the ADE7752AARZ support?
The ADE7752AARZ supports 3-phase/3-wire delta and 3-phase/4-wire Wye configurations. - What is the purpose of the REVP output?
The REVP output indicates potential miswiring or negative power for each phase. - Can the ADE7752AARZ drive electromechanical counters directly?
Yes, the ADE7752AARZ can directly drive electromechanical counters and 2-phase stepper motors using outputs F1 and F2. - What is the on-chip reference voltage of the ADE7752AARZ?
The on-chip reference voltage is 2.4 V ±8% (20 ppm/°C typical). - Does the ADE7752AARZ have built-in power supply monitoring?
Yes, the ADE7752AARZ includes on-chip power supply monitoring. - What is the package type of the ADE7752AARZ?
The ADE7752AARZ is available in a 24-lead SOIC package. - How accurate is the energy measurement provided by the ADE7752AARZ?
The ADE7752AARZ provides energy measurement with an accuracy of less than 0.1% over a dynamic range of 500 to 1.
