AD8603AUJ-REEL

Overview

The AD8603AUJ-REEL is a single-channel precision operational amplifier from Analog Devices, housed in a 5-lead TSOT package. It operates on a single supply of 1.8 V to 5 V or dual supplies of ±0.9 V to ±2.5 V. Key electrical parameters include a maximum offset voltage of 50 µV, input bias current of 1 pA, and noise density of 22 nV/√Hz at 10 kHz. The device draws 40 µA per amplifier, features rail-to-rail input/output, and maintains stability with capacitive loads up to 2 nF.

Feature Summary

• Patented trimming technique achieves superior precision without laser trimming
• Rail-to-rail input and output capability enables buffering CMOS ADCs and DACs
• No phase reversal occurs even when input exceeds common-mode voltage limits
• Capable of driving large capacitive loads without oscillation

Applications

• Battery-powered instrumentation
• Multipole filters
• Proximity sensors
• Photodiode amplification

Procurement Notes

Verify the specific suffix (e.g., REEL7) against the manufacturer's ordering guide to confirm reel quantity and RoHS compliance status. Ensure the component matches the required temperature range and package dimensions for your PCB layout. Cross-reference the datasheet revision date to confirm parameter accuracy before finalizing procurement specifications.

Selection Notes

Select this component for low-power applications requiring high precision and low noise. The 5-lead TSOT package is suitable for space-constrained designs. Consider the gain bandwidth product and slew rate for signal processing speed requirements. Verify that the supply voltage range aligns with the system power architecture.

Part Context

This part belongs to the AD8603/AD8607/AD8609 family of micropower, low-noise CMOS operational amplifiers. While the AD8603 is a single-channel device, the family includes dual (AD8607) and quad (AD8609) variants sharing similar electrical characteristics and packaging options.

Replacement Considerations

Direct substitutes within the same family include the AD8607 (dual) and AD8609 (quad). Other packages for the AD8603 include the SOIC variant. Verify pinout compatibility and thermal performance when considering alternative packages.

FAQ

Does the AD8603 exhibit phase reversal?

No, the AD8603 does not exhibit phase inversion even when the input voltage exceeds the maximum input common-mode voltage.

What is the maximum capacitive load it can drive?

The AD8603 is capable of driving capacitive loads up to 2 nF without oscillating.