AD8217BRMZ-RL

Overview

The AD8217BRMZ-RL is a high-voltage, high-resolution current sense amplifier from Analog Devices. It features a fixed gain of 20 V/V and utilizes a zero-drift architecture to maintain precision across temperature variations. The device operates with a common-mode voltage range of 4.5 V to 80 V and includes an integrated LDO for power supply. Key electrical parameters include a maximum gain error of ±0.35%, a typical input offset voltage of ±100 μV, and a drift of ±100 nV/°C. It offers a 90 dB common-mode rejection ratio and a 500 kHz gain-bandwidth product. The component is housed in an 8-lead MSOP package and supports operation from -40°C to +125°C.

Feature Summary

• Zero-drift technology ensures minimal offset drift over the entire operating temperature range
• Integrated low-dropout regulator allows direct powering from the high-voltage rail
• High common-mode rejection performance across a wide voltage range
• Linear output maintained across the full differential input voltage range

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 RL against official documentation to confirm reel packaging specifications. Ensure the part number matches the exact manufacturer designation for Analog Devices Inc. Cross-reference the datasheet revision date to confirm parameter validity. Confirm RoHS compliance status through official channels before integration into production designs.

Selection Notes

Select this component when high-side current monitoring is required at voltages up to 80 V. The zero-drift characteristic makes it suitable for applications demanding high accuracy without frequent calibration. The integrated power supply simplifies board layout by eliminating the need for separate auxiliary voltage rails. Consider the fixed 20 V/V gain relative to the expected shunt voltage drop.

Part Context

This part belongs to the AD8217 series of current sense amplifiers designed for industrial and telecommunications environments. It is distinct from bidirectional models like the AD8417W due to its unidirectional measurement capability. The BRMZ-RL variant specifies the commercial grade temperature range and reel packaging format within the broader AD8217 family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing circuit designs if considering alternative current sense amplifiers from other manufacturers or different Analog Devices series.