ADE7752AARZ

Overview

The ADE7752AARZ is a polyphase energy metering integrated circuit designed for high-accuracy utility applications. It operates on a single 5 V supply with typical power consumption of 30 mW. The device features proprietary analog-to-digital converters and digital signal processing to support IEC62053-2x standards, maintaining less than 0.1% error over a dynamic range of 500 to 1. It supports 50 Hz/60 Hz systems and is compatible with 3-phase/3-wire delta and 3-phase/4-wire Wye configurations. The component provides average real power on frequency outputs F1 and F2, instantaneous real power on the CF output, and logic indication for miswiring or negative power.

Feature Summary

• Provides direct drive capability for electromechanical counters and two-phase stepper motors via dedicated frequency outputs.
• Integrates on-chip power supply monitoring and creep protection with a defined no-load threshold.
• Utilizes digital domain signal processing for multiplication, filtering, and summation to ensure stability across environmental variations.

Applications

• Direct drive for electromechanical energy counters
• Two-phase stepper motor meter displays
• Microcontroller interface for LCD energy meters

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout and functional compatibility. Ensure the procurement channel sources genuine components from authorized distributors to guarantee adherence to IEC62053-2x accuracy standards. Confirm package integrity upon receipt to prevent damage to the SOIC housing.

Selection Notes

Select this component for applications requiring low power consumption and high accuracy in polyphase metering. It is suitable for designs needing direct interface with mechanical registers without intermediate buffering. Consider the single 5 V supply requirement and the availability of evaluation boards for initial development and calibration testing.

Part Context

The ADE7752AARZ belongs to the ADE7752 family of polyphase energy metering ICs. It shares architectural similarities with the standard ADE7752 but offers reduced power consumption. Both variants utilize CMOS processes and are intended for civil and industrial applications where billing accuracy and low power are critical.

Replacement Considerations

The standard ADE7752 is a related variant within the same family. Verify if the higher power consumption of the standard version is acceptable for the target application before substituting.