AD8552ARZ

Overview

The AD8552ARZ is a dual-channel zero-drift operational amplifier featuring rail-to-rail input and output swings. It operates on a single supply from 2.7 V to 5.5 V. Key electrical parameters include a typical offset voltage of 1 μV, an input bias current of 20 pA, and a gain-bandwidth product of 1.5 MHz at 5 V. The device provides high open-loop gain exceeding 130 dB and low power consumption of approximately 850 μA per amplifier.

Feature Summary

• Zero-drift architecture utilizing auto-zero stabilization for ultralow offset voltage and drift
• Rail-to-rail input and output capability enabling full signal swing across the supply range
• High common-mode rejection ratio and power supply rejection ratio exceeding 130 dB
• 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 package marking and date code against the manufacturer's ordering guide to confirm authenticity. Ensure the component matches the specific suffix requirements for the desired package type and temperature grade. Cross-reference the datasheet revision with the provided documentation to validate performance specifications.

Selection Notes

Select this component for applications requiring high DC precision without external trimming capacitors. The dual configuration is optimal for differential signal conditioning or dual-channel monitoring systems. Consider the extended industrial temperature range when designing for automotive or harsh environmental conditions.

Part Context

This part belongs to the AD855x family of precision amplifiers, which includes single (AD8551) and quad (AD8554) variants. The AD8552 specifically provides two independent channels in an 8-lead narrow SOIC package. The family shares the same core zero-drift topology and electrical characteristics.

Replacement Considerations

Direct pin-compatible substitutes within the same series include the AD8551ARZ (single channel) and AD8554ARZ (quad channel). Verify that any alternative component maintains the required rail-to-rail input/output specifications and zero-drift performance characteristics.