AD8605ART-REEL7

Overview

The AD8605ART-REEL7 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 typical unity gain bandwidth of 10 MHz, and a slew rate of 5 V/μs. The device exhibits low noise characteristics with an input voltage noise density of 8 nV/√Hz at 1 kHz and extremely low input bias currents capped at 1 pA. It is specified for operation across the 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 systems.
• Ensures stability under all conditions as a unity-gain stable amplifier.
• Features high open-loop gain of 1000 V/mV for enhanced signal accuracy.

Applications

• Photodiode amplification
• Battery-powered instrumentation
• Multipole filters
• Sensors
• Barcode scanners

Procurement Notes

Verify that the ordering suffix ARTZ corresponds specifically to the SOT-23 package variant rather than other available packages like WLCSP or MSOP. Confirm the REEL7 designation matches the required tape-and-reel quantity. Ensure the component meets RoHS compliance standards if applicable to your manufacturing process. Cross-reference the manufacturer part number with official Analog Devices documentation to validate authenticity before procurement.

Selection Notes

Select this component when designing circuits requiring high DC precision combined with wide bandwidth in a compact form factor. The low input bias current makes it suitable for interfacing with high-impedance sensors. Consider the SOT-23 package constraints regarding thermal dissipation and board space. Evaluate the trade-off between the 1 mA supply current and the required performance metrics for battery-operated applications.

Part Context

This device belongs to the AD860x family of precision, low-noise, CMOS, rail-to-rail input/output operational amplifiers manufactured by Analog Devices. The family includes single (AD8605), dual (AD8606), and quad (AD8608) channel variants. These amplifiers are designed for applications demanding high accuracy and speed within a small footprint, leveraging proprietary trimming techniques for consistent performance across temperature variations.

Replacement Considerations

No public confirmed substitute part numbers are documented in the provided source material.

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 specification?

The maximum input bias current is 1 pA.