AD8605ART-REEL

Overview

The AD8605ART-REEL is a single-channel, precision CMOS operational amplifier featuring rail-to-rail input and output capabilities. It operates on a single supply voltage ranging from 2.7 V to 5.5 V. Key electrical specifications include a maximum offset voltage of 65 µV, a maximum input bias current of 1 pA, and a voltage noise density of 8 nV/√Hz at 1 kHz. The device offers a unity-gain bandwidth product of 10 MHz and a slew rate of 5 V/µs. It is specified for operation across an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• Utilizes patented DigiTrim trimming technology to achieve superior precision without laser trimming.
• Provides rail-to-rail input and output swing capability for optimal dynamic range in single-supply applications.
• Exhibits no phase reversal even when input voltages exceed the supply rails by more than 2 V.
• Features very low input bias currents and low noise characteristics suitable for high-impedance sensor interfaces.

Applications

• Photodiode amplification
• Battery-powered instrumentation
• Multipole filters
• Sensors
• Audio

Procurement Notes

Verify that the ordering suffix ARTZ corresponds to the SOT-23 package variant as indicated in official documentation. Confirm the REEL designation matches the required tape-and-reel packaging format. Ensure compatibility with the specified operating temperature range and supply voltage requirements before integration into the design.

Selection Notes

Select this component for applications requiring high precision and low noise in a compact surface-mount footprint. The rail-to-rail I/O functionality makes it suitable for low-voltage single-supply systems. Consider the specific package availability and thermal characteristics when designing for high ambient temperatures or dense PCB layouts.

Part Context

The AD8605 is part of the Analog Devices AD8605/AD8606/AD8608 family of precision, low-noise, CMOS, rail-to-rail input/output operational amplifiers. This family includes single, dual, and quad channel variants designed for general-purpose analog signal processing tasks requiring high accuracy and wide bandwidth.

Replacement Considerations

Official substitutes within the same family include the AD8606 (dual channel) and AD8608 (quad channel). Cross-reference pinouts and package dimensions carefully when replacing with other manufacturers' parts to ensure functional equivalence.

FAQ

Does the AD8605 exhibit output phase reversal?

No, the AD8605 does not exhibit phase reversal even for inputs exceeding the supply voltage by more than 2 V.

What is the maximum input bias current?

The maximum input bias current is 1 pA.