AD8552ARUZ-REEL

Overview

The AD8552ARUZ-REEL is a dual-channel, zero-drift operational amplifier manufactured by Analog Devices Inc. It features rail-to-rail input and output capabilities and operates on a single supply voltage ranging from 2.7 V to 5.5 V. The device utilizes an auto-zero stabilization architecture to achieve an ultralow typical offset voltage of 1 μV and an input offset drift of 0.005 μV/°C across the extended industrial temperature range of −40°C to +125°C. Key electrical specifications include a gain bandwidth product of 1.5 MHz at 5 V, a slew rate of 0.4 V/μs, and a maximum supply current of 975 μA per amplifier. The component is housed in an 8-lead TSSOP surface-mount package.

Feature Summary

• Auto-zero stabilization topology ensures near-zero offset voltage drift over the operating temperature range without requiring external capacitors.
• Rail-to-rail input and output stages enable full signal swing capability for both high-side and low-side sensing applications.
• Ultralow input bias current and high open-loop gain provide exceptional precision for sensitive measurement circuits.

Applications

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

Procurement Notes

Verify the specific ordering suffix RUZ corresponds to the 8-lead TSSOP package configuration required for your design. Confirm that the REEL designation matches your automated assembly requirements. Ensure the selected variant meets the −40°C to +125°C temperature rating specified for industrial or automotive environments. Cross-reference the datasheet revision F specifications against your system's power supply constraints.

Selection Notes

Select this component when sub-microvolt offset stability is critical and external calibration is impractical. The dual-channel configuration offers a cost-effective alternative to expensive chopper-stabilized amplifiers while maintaining high accuracy. Consider the 700 μA per amplifier supply current for battery-powered systems where low power consumption is a priority alongside precision.

Part Context

This part belongs to the AD855x family of zero-drift, single-supply, rail-to-rail input/output operational amplifiers. The family includes the AD8551 (single), AD8552 (dual), and AD8554 (quad) variants. All members share the same core auto-zero architecture and performance characteristics, differing primarily in channel count and available package options such as MSOP, SOIC, and TSSOP.

Replacement Considerations

Direct pin-compatible substitutes within the same family include the AD8551ARUZ-REEL for single-channel applications and the AD8554ARUZ-REEL for quad-channel configurations. Verify that any replacement maintains the 8-lead TSSOP footprint and the specific REEL packaging format if automated placement is utilized.

FAQ

Does the AD8552ARUZ-REEL require external capacitors for its auto-zero function?

No, the internal auto-zero stabilization architecture eliminates the need for external capacitors.

What is the input common-mode voltage range for this amplifier?

The input common-mode voltage range extends from the negative supply rail (GND) to the positive supply rail (VS).