AD8571ARMZ-REEL

Overview

The AD8571ARMZ-REEL is a single-channel, zero-drift operational amplifier manufactured by Analog Devices Inc. It operates on a single supply voltage ranging from 2.7 V to 5 V. Key electrical characteristics include a typical input offset voltage of 1 μV and an input offset drift of 0.005 μV/°C. The device features rail-to-rail input and output capabilities, a gain bandwidth product of 1.5 MHz, and a typical large signal voltage gain of 145 dB. Supply current per amplifier is typically 750 μA at 2.7 V and 975 μA at 5 V. The component is housed in an 8-lead MSOP package.

Feature Summary

• Utilizes a random frequency auto-zero stabilization topology to achieve ultralow offset voltage and drift without requiring external capacitors.
• Features rail-to-rail input and output swings, allowing the common-mode input voltage range to extend to both supply rails.
• Incorporates spread-spectrum auto-zero techniques to eliminate intermodulation distortion effects between the chopping function and signal frequencies.

Applications

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

Procurement Notes

Verify the specific ordering suffix RMZ corresponds to the 8-lead MSOP package with tape and reel packaging as indicated by the REEL designation. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the procurement channel provides valid traceability for the Analog Devices Inc. part number AD8571ARMZ-REEL.

Selection Notes

Select this component for applications requiring high DC precision and low drift over wide temperature ranges. The rail-to-rail I/O capability makes it suitable for single-supply systems operating at low voltages. Consider the 1.5 MHz gain bandwidth product and 400 mV/μs slew rate for dynamic signal requirements. Verify that the 8-lead MSOP package fits the available PCB footprint constraints.

Part Context

The AD8571ARMZ-REEL belongs to the AD857x family of zero-drift, single-supply, rail-to-rail input/output operational amplifiers. This family includes single (AD8571), dual (AD8572), and quad (AD8574) amplifier variants. All members share the same core architecture utilizing Analog Devices' proprietary auto-zero technology to deliver high accuracy and stability.

Replacement Considerations

Direct functional substitutes within the same family include the AD8571ARZ (SOIC package) and AD8571ARMZ (MSOP tube). Cross-family replacements require verification of pin compatibility and electrical parameter alignment.

FAQ

Does the AD8571ARMZ-REEL require external capacitors for operation?

No, the AD8571ARMZ-REEL does not require external capacitors. The internal auto-zero circuitry handles offset correction automatically.

What is the maximum differential input voltage for the AD8571ARMZ-REEL?

The absolute maximum differential input voltage is limited to ±5.0 V or the supply voltage, whichever is less.