AD8552ARU-REEL

Overview

The AD8552ARU-REEL is a dual-channel, zero-drift operational amplifier manufactured by Analog Devices Inc. It features rail-to-rail input and output swings and operates on a single supply voltage ranging from 2.7 V to 5.5 V. The device utilizes an auto-zero stabilization topology to achieve ultralow offset voltage of 1 μV and input offset drift of 0.005 μV/°C across the extended industrial temperature range of −40°C to +125°C. Key electrical characteristics include a gain bandwidth product of 1.5 MHz, high common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR) exceeding 130 dB, and low supply current consumption of approximately 700 μA per amplifier.

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 within supply boundaries
• High precision performance with exceptional CMRR and PSRR exceeding 130 dB
• Single-supply operation optimized for low-voltage applications without external capacitors

Applications

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

Procurement Notes

Verify the specific package suffix 'RU' corresponds to the 8-lead TSSOP surface-mount configuration as defined in the official datasheet. Confirm that the '-REEL' designation indicates tape-and-reel packaging suitable for automated assembly processes. Ensure compatibility with the specified 2.7 V to 5.5 V single-supply voltage range and the required operating temperature specifications for the target application environment.

Selection Notes

Select this component when sub-microvolt offset stability and near-zero drift are critical requirements. The dual-channel configuration allows for cost-effective implementation of differential or multi-stage signal conditioning circuits. Consider the 8-lead TSSOP package constraints regarding thermal dissipation and board space. Evaluate the 1.5 MHz bandwidth against the required signal frequency response to ensure adequate performance margins.

Part Context

The AD8552ARU-REEL belongs to the AD855x family of precision operational amplifiers, which includes single (AD8551), dual (AD8552), and quad (AD8554) variants. This family shares a unified zero-drift CMOS architecture designed to provide high accuracy at a lower cost compared to traditional chopper-stabilized amplifiers. The dual-channel version offers two independent amplifiers in a compact footprint, facilitating complex analog front-end designs.

Replacement Considerations

Direct functional substitutes within the same family include the AD8551ARU (single channel) and AD8554ARU (quad channel). Verify pinout compatibility and package dimensions before substitution. Cross-family replacements require careful evaluation of electrical parameters such as offset voltage, bandwidth, and supply current to ensure system performance is maintained.