ADA4891-3ARZ-R7

Overview

The ADA4891-3ARZ-R7 is a triple-channel, low-cost CMOS high-speed operational amplifier with rail-to-rail output. 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 220 MHz at unity gain and a slew rate of 170 V/µs. It delivers a linear output current of 125 mA and consumes 4.4 mA per amplifier. The part includes dedicated power-down pins for each channel.

Feature Summary

• Triple-channel architecture with individual power-down control
• Rail-to-rail output stage maximizing dynamic range
• High-speed performance with fast settling time
• Low distortion characteristics suitable for video applications

Applications

• Automotive infotainment systems
• Automotive driver assistance systems
• Imaging applications such as CCD buffers
• Consumer video equipment
• Active filters and coaxial cable drivers

Procurement Notes

Verify the specific suffix R7 indicates tape and reel packaging when sourcing this component. Confirm that the ARZ designation corresponds to the specified temperature grade and RoHS compliance requirements for your manufacturing process. Ensure the supplier documentation matches the Rev F datasheet specifications for accurate electrical parameter validation.

Selection Notes

Select this component when a triple-channel configuration is required alongside high-speed signal processing capabilities. The rail-to-rail output allows for maximum dynamic range in single-supply systems. Consider the integrated power-down feature if system-level power management is necessary. Verify that the 220 MHz bandwidth meets the specific frequency requirements of the target application circuit.

Part Context

This part belongs to the ADA4891 family, which includes single, dual, and quad variants. All members share identical core electrical characteristics but differ in channel count and package options. The ADA4891-3 specifically integrates three amplifiers into a 14-lead SOIC or TSSOP footprint, providing a compact solution for multi-channel signal conditioning tasks.

Replacement Considerations

ADA4891-3ARZ is the non-reel equivalent offering identical electrical specifications in tube packaging.