AD8691AUJZ-REEL

Overview

The AD8691AUJZ-REEL is a single-channel, low-cost, low-noise CMOS operational amplifier with rail-to-rail output. It operates on a single supply from 2.7 V to 6 V and features a gain bandwidth product of 10 MHz and a slew rate of 5 V/µs. Key electrical characteristics include a typical offset voltage of 400 µV, maximum input bias current of 1 pA, and voltage noise density of 8 nV/√Hz at 1 kHz. The device is qualified for automotive applications and functions within an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• Rail-to-rail output capability for maximizing dynamic range in single-supply systems
• Very low input bias current suitable for high-impedance sensor interfaces
• Low noise performance optimized for precision signal conditioning
• Automotive qualification ensuring reliability in demanding environments

Applications

• Photodiode amplification circuits
• Battery-powered instrumentation systems
• Medical instruments requiring low noise
• Multipole filters
• Portable audio devices

Procurement Notes

Verify the specific ordering suffix (REEL) matches the required packaging format against the manufacturer's official Ordering Guide. Confirm that the component meets RoHS compliance standards as indicated by the 'Z' suffix. Ensure the selected package option aligns with the thermal and mechanical constraints of the target PCB design before finalizing procurement.

Selection Notes

Select this component when a single-channel amplifier with rail-to-rail output is required for single-supply operation between 2.7 V and 6 V. It is appropriate for applications needing low offset voltage drift and very low input bias currents. Consider the TSOT-5 package dimensions for space-constrained designs and verify that the 10 MHz bandwidth meets the system's frequency response requirements.

Part Context

This part belongs to the AD8691/AD8692/AD8694 family of low cost, low noise, CMOS, RRO operational amplifiers manufactured by Analog Devices Inc. The family includes single, dual, and quad variants sharing similar electrical specifications but differing in channel count and package options such as MSOP, SOIC, TSSOP, SC70, and TSOT.

Replacement Considerations

Direct substitutes within the same family include AD8691AUJZ-R2 and AD8691AUJZ-REEL7, which share identical electrical characteristics and the 5-Lead TSOT package.