ADA4891-2ARMZ-R7

Overview

The ADA4891-2ARMZ-R7 is a dual-channel, low-cost CMOS high-speed rail-to-rail operational amplifier manufactured by Analog Devices. It operates on a single supply voltage ranging from 2.7 V to 5.5 V and features an input common-mode range extending 300 mV below the negative rail. The device provides a small-signal bandwidth of 240 MHz at unity gain and a slew rate of 170 V/µs. It delivers a linear output current of 125 mA and maintains a quiescent current of 4.4 mA per amplifier. The component is housed in an 8-lead MSOP package and supports operation across an extended temperature range of −40°C to +125°C.

Feature Summary

• High-speed performance with fast settling time for video signal processing
• True single-supply capability with rail-to-rail output swing
• Low distortion characteristics suitable for precision applications
• Automotive qualification for infotainment and driver assistance systems

Applications

• Automotive infotainment systems
• Imaging and consumer video equipment
• Active filters
• Coaxial cable drivers
• Photodiode preamplifiers

Procurement Notes

Verify that the specific ordering suffix matches the required tape-and-reel packaging configuration. Confirm the automotive grade designation if the application requires compliance with AEC-Q100 standards. Ensure the selected variant aligns with the necessary thermal management requirements for the target operating environment.

Selection Notes

Select this component when a dual-channel configuration is required alongside high-speed signal integrity. The rail-to-rail output stage maximizes dynamic range in low-voltage single-supply designs. Consider the 8-lead MSOP package dimensions for space-constrained printed circuit board layouts.

Part Context

This part belongs to the ADA4891 family, which includes single, triple, and quad channel variants. All members share identical electrical specifications but differ in pin counts and package options. The series is designed to provide cost-effective, high-performance amplification for demanding analog signal paths.

Replacement Considerations

ADA4891-2ARMZ

FAQ

Does the ADA4891-2 support shutdown functionality?

No, the ADA4891-2 does not include a power-down feature. Only the ADA4891-3 variant includes dedicated power-down pins.

What is the maximum differential input voltage?

The absolute maximum differential input voltage is equal to the positive supply voltage (VS).