AD8552ARU

Instrumentation, Op Amps, Buffer Amps Overview

The AD8552ARU 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. Key electrical parameters include a gain bandwidth product of 1.5 MHz at 5 V, a slew rate of 0.4 V/μs, and high common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR) exceeding 130 dB. It is housed in an 8-lead TSSOP surface-mount package.

Instrumentation, Op Amps, Buffer Amps 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 entire supply range.
• High precision performance with exceptional CMRR and PSRR exceeding 130 dB.
• No external capacitors required for operation.

Instrumentation, Op Amps, Buffer Amps Applications

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

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix 'RU' corresponds to the 8-lead TSSOP package configuration as defined in the manufacturer's documentation. Confirm that the component meets the extended industrial/automotive temperature range specifications of -40°C to +125°C. Ensure compatibility with single-supply voltages between 2.7 V and 5.5 V for the target application environment.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when sub-microvolt offset stability is critical without the need for external compensation components. The dual-channel configuration allows for cost-effective implementation of multi-stage sensor interfaces. Consider the 8-lead TSSOP package constraints regarding thermal dissipation and board space requirements compared to SOIC alternatives within the same family.

Instrumentation, Op Amps, Buffer Amps Part Context

The AD8552ARU belongs to the AD855x family of zero-drift, single-supply, rail-to-rail input/output operational amplifiers. This series includes the single-channel AD8551 and quad-channel AD8554 variants. All members share the same core auto-zero stabilization technology, offering high accuracy and low noise characteristics suitable for precision measurement applications requiring stable DC performance.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The AD8552ARZ serves as a direct pin-compatible alternative within the same family, differing primarily in the 8-lead narrow SOIC package instead of the TSSOP format. Both variants share identical electrical specifications and functionality.

Instrumentation, Op Amps, Buffer Amps FAQ

Does the AD8552ARU require external capacitors for its auto-zero function?

No, the AD8552ARU does not require external capacitors; it integrates the necessary components internally for its auto-zero stabilization process.

What is the input bias current specification for the AD8552ARU?

The input bias current is specified as typically 300 pA at temperatures up to +85°C, increasing to a maximum of 4 nA across the full operating temperature range of -40°C to +125°C.