ADE7757ARNZRL

Energy Metering Overview

The ADE7757ARNZRL is a single-phase AC energy metering integrated circuit manufactured by Analog Devices Inc. It features an on-chip oscillator as a clock source, eliminating the need for external crystals. The device provides high accuracy, with less than 0.1% error over a dynamic range of 500 to 1, supporting 50 Hz and 60 Hz IEC standards. It supplies average real power on frequency outputs F1 and F2, while the high-frequency output CF delivers instantaneous real power for calibration. The chip includes logic output REVP for miswiring indication, direct drive capability for electromechanical counters and stepper motors, and on-chip creep protection. It operates on a single 5 V supply with typical low power consumption of 20 mW.

Energy Metering Feature Summary

• On-chip oscillator eliminates external crystal requirements
• High accuracy with less than 0.1% error over large dynamic range
• Direct drive capability for electromechanical counters and stepper motors
• On-chip power supply monitoring and creep protection

Energy Metering Applications

• Single-phase AC energy metering systems
• Electromechanical counter interfaces
• Two-phase stepper motor control applications
• Calibration equipment requiring instantaneous power data

Energy Metering Procurement Notes

Verify the specific suffix ARNZRL against the manufacturer's official documentation to confirm package type, temperature range, and tape-and-reel specifications. Ensure compatibility with single 5 V supply requirements and check for any recent process change notices that may affect pinout or electrical characteristics before finalizing procurement orders.

Energy Metering Selection Notes

Select this component when designing single-phase energy meters requiring high accuracy without external clock components. Consider its direct drive capability for mechanical counters if digital interfaces are not preferred. Evaluate the 20 mW typical power consumption against system thermal constraints and verify that the 5 V single supply aligns with existing board voltage rails.

Energy Metering Part Context

The ADE7757 belongs to Analog Devices' specialized energy metering IC family, designed for accurate measurement of AC power parameters. It utilizes proprietary ADCs and DSP technology to maintain precision across environmental variations. This part represents a cost-effective solution compared to previous series models by integrating the clock source internally, reducing bill-of-materials complexity.

Energy Metering Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.