AD8217BRMZ-R7

Overview

The AD8217BRMZ-R7 is a high-voltage, high-resolution current shunt monitor featuring a fixed gain of 20 V/V. It operates with a supply voltage range of 4.5 V to 80 V and supports a common-mode voltage range from 4.5 V to 80 V. The device incorporates an internal LDO for power supply, eliminating the need for external biasing within the specified input range. Key electrical parameters include a maximum gain error of ±0.35% across the temperature range, a gain-bandwidth product of 500 kHz, and a common-mode rejection ratio of 90 dB. Input offset voltage is typically ±100 μV, with a typical drift of ±100 nV/°C. Operating temperatures span from -40°C to +125°C.

Feature Summary

• Zero-drift architecture ensures low offset voltage and minimal drift over temperature and common-mode voltage ranges.
• Integrated low-dropout regulator allows direct powering from the high-voltage rail without additional supplies.
• High common-mode rejection capability maintains accuracy in high-voltage environments up to 80 V.

Applications

• Motor control systems
• Battery management systems
• Base station power amplifier bias control
• High-end current sensing in telecom equipment

Procurement Notes

Verify the specific suffix R7 indicates reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets. Ensure the operating environment stays within the specified -40°C to +125°C range to maintain guaranteed performance metrics. Cross-reference the part number with Analog Devices official listings to avoid counterfeit components.

Selection Notes

Select this component for applications requiring unidirectional current measurement in high-voltage circuits. The fixed 20 V/V gain suits scenarios where signal conditioning directly interfaces with standard analog-to-digital converters. Consider the zero-drift technology if long-term stability and precision are critical under varying thermal conditions. Evaluate the 80 V common-mode limit against system voltage peaks.

Part Context

This part belongs to the AD8217 series of current shunt monitors manufactured by Analog Devices Inc. It is designed for industrial and telecommunications applications demanding high precision in harsh electrical environments. The MSOP-8 package provides a compact solution for space-constrained designs while maintaining thermal performance suitable for automotive and industrial grade operations.

Replacement Considerations

Check Analog Devices documentation for officially qualified pin-compatible or functionally equivalent alternatives within the same family. Verify that any substitute matches the 20 V/V gain, 80 V common-mode range, and zero-drift specifications.