AD8552AR-REEL7

Overview

The AD8552AR-REEL7 is a dual-channel zero-drift operational amplifier manufactured by Analog Devices Inc. It features rail-to-rail input and output swings, operating on a single supply from 2.7 V to 5 V. The device utilizes an auto-zero stabilization topology to achieve ultralow offset voltage (1 μV typical) and drift (0.005 μV/°C). Key electrical parameters include a gain bandwidth product of 1.5 MHz at 5 V, high open-loop gain exceeding 130 dB, and low supply current of approximately 850 μA per amplifier. It operates within an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• Zero-drift architecture utilizing auto-zero stabilization for minimal offset voltage and drift over temperature
• Rail-to-rail input and output capability enabling full signal swing across the supply range
• High precision with exceptional common-mode rejection ratio and power supply rejection ratio
• Ultralow input bias current suitable for high-impedance sensor interfaces

Applications

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

Procurement Notes

Verify the specific package suffix 'R' corresponds to the 8-lead narrow SOIC configuration as defined in the official ordering guide. Confirm that the REEL7 designation matches the required tape and reel packaging format for automated assembly processes. Ensure the component meets the specified RoHS compliance standards for your manufacturing requirements.

Selection Notes

Select this component when sub-microvolt offset stability is critical without external trimming. The dual-channel configuration offers space efficiency compared to single amplifiers. Consider the 1.5 MHz bandwidth sufficient for low-frequency signal conditioning. Verify that the single-supply operation aligns with the system power architecture.

Part Context

This part belongs to the AD855x family of zero-drift amplifiers, which includes single (AD8551), dual (AD8552), and quad (AD8554) variants. All members share the same core auto-zero technology and electrical characteristics but differ in channel count and pinout configurations. The family is designed to replace expensive chopper-stabilized amplifiers in cost-sensitive applications.

Replacement Considerations

Direct functional replacements within the same family include the AD8551ARZ for single-channel needs or the AD8554ARZ for four-channel integration. Cross-family substitution requires careful evaluation of pin compatibility and thermal performance differences between package types.