AD8646WARMZ-RL

Overview

The AD8646WARMZ-RL is a dual-channel, precision operational amplifier manufactured by Analog Devices Inc. It features rail-to-rail input and output capabilities with a gain bandwidth product of 24 MHz and a slew rate of 11 V/µs. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V, drawing a maximum supply current of 2 mA per amplifier. Key electrical specifications include a maximum offset voltage of 2.5 mV, an input bias current of 1 pA, and a short-circuit output current of 120 mA. It is qualified for automotive applications and housed in an 8-lead MSOP package.

Feature Summary

• Rail-to-rail input and output operation enables full signal swing capability within the supply voltage range.
• Very low input bias current minimizes loading effects on high-impedance signal sources.
• Automotive qualification ensures reliability and performance consistency under demanding environmental conditions.
• High output drive capability supports direct interfacing with low-impedance loads.

Applications

• Battery-powered instruments
• Multipole filters
• ADC front ends
• Photodiode amplifiers

Procurement Notes

Verify that the component matches the specific Automotive grade designation (indicated by the 'W' suffix) required for your application environment. Confirm the package type is the 8-lead MSOP variant as specified in the ordering guide. Ensure compatibility with the intended operating temperature range of -40°C to +125°C before finalizing procurement.

Selection Notes

Select this component when both high-speed signal processing and precision DC accuracy are required in a single-supply system. The combination of wide bandwidth and low offset voltage makes it suitable for applications where signal integrity must be maintained across varying frequencies. Consider the automotive qualification if the deployment environment requires enhanced durability standards.

Part Context

This part belongs to the AD8646/AD8647/AD8648 family of 24 MHz Rail-to-Rail Amplifiers. While the AD8647 includes a shutdown feature and the AD8648 offers four channels, the AD8646 provides two channels without shutdown functionality. The 'W' suffix specifically denotes automotive qualification, distinguishing it from standard commercial variants.

Replacement Considerations

The AD8646ARZ-REEL serves as a non-automotive equivalent with identical electrical characteristics but lacks automotive qualification. The AD8646WARZ-RL is a SOIC-8 package alternative offering the same performance in a different footprint.