AD8571ARM-REEL

Overview

The AD8571ARM-REEL is a single-channel, zero-drift operational amplifier from Analog Devices. It features rail-to-rail input and output swings and operates on a single supply voltage ranging from 2.7 V to 5 V. Key electrical characteristics include a typical offset voltage of 1 μV with a drift of 0.005 μV/°C, an input bias current of 10 pA, and a gain bandwidth product of 1.5 MHz at 5 V. The device provides high open-loop gain (145 dB typical) and excellent common-mode rejection (140 dB typical). It is housed in an 8-lead MSOP package.

Feature Summary

• Utilizes spread-spectrum auto-zero technology to eliminate intermodulation distortion without requiring external capacitors.
• Features rail-to-rail input and output capabilities for maximum dynamic range in single-supply applications.
• Provides ultralow offset voltage and drift, ensuring high DC precision across the operating temperature range.

Applications

• Temperature sensors
• Pressure sensors
• Precision current sensing
• Strain gage amplifiers
• Medical instrumentation

Procurement Notes

Verify the specific ordering suffix 'RM' corresponds to the 8-lead MSOP package variant. Confirm that the '-REEL' designation indicates tape-and-reel packaging suitable for automated assembly processes. Ensure compatibility with the required supply voltage range of 2.7 V to 5 V for the target application design.

Selection Notes

Select this component when high DC accuracy and low drift are critical requirements. The rail-to-rail I/O makes it suitable for low-voltage single-supply systems. Consider the 1.5 MHz gain bandwidth product for signal conditioning needs. Verify thermal management requirements based on the MSOP package thermal resistance if operating near maximum temperature limits.

Part Context

The AD8571 is part of the AD857x family, which includes dual (AD8572) and quad (AD8574) amplifier variants. All members share the same zero-drift architecture and electrical specifications. The AD8571 specifically integrates a single amplifier channel into a compact surface-mount footprint, distinguishing it from the multi-channel versions while maintaining identical performance metrics.

Replacement Considerations

Direct functional equivalents within the same family include the AD8572 and AD8574, though these offer multiple channels. For single-channel replacements, verify pinout compatibility between SOIC and MSOP packages if changing form factors. No other specific substitute part numbers are confirmed in the provided documentation.