ADA4891-2ARMZ-RL

Overview

The ADA4891-2ARMZ-RL is a dual-channel, low-cost CMOS high-speed operational amplifier manufactured by Analog Devices Inc. It features rail-to-rail input and output capabilities with an operating supply voltage range of 2.7 V to 5.5 V. The device provides a small-signal bandwidth of 240 MHz at a gain of +1 and a slew rate of 170 V/µs. Key electrical parameters include a quiescent current of 4.4 mA per amplifier, an input offset voltage of ±2.5 mV, and an input bias current of ±50 pA. It operates within an extended temperature range from −40°C to +125°C.

Feature Summary

• Rail-to-rail input and output stages enable maximum dynamic range across the full supply voltage span.
• High-speed performance characterized by a 240 MHz small-signal bandwidth and 170 V/µs slew rate.
• Low power consumption with a quiescent current of 4.4 mA per amplifier channel.
• Extended industrial temperature operation rated from −40°C to +125°C.

Applications

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

Procurement Notes

Verify that the specific ordering suffix matches the required package type and reel quantity for automated assembly. Confirm the component meets automotive qualification standards if utilized in vehicle electronics. Ensure the datasheet revision aligns with the manufacturing batch specifications. Validate all electrical parameters against the application requirements before finalizing procurement decisions.

Selection Notes

Select this component when a dual-channel configuration is required alongside high-speed signal processing needs. The rail-to-rail architecture suits single-supply designs where maximizing output swing is critical. Consider the 240 MHz bandwidth and fast settling time for active filtering or video signal conditioning tasks. Evaluate thermal dissipation constraints based on the MSOP-8 package characteristics.

Part Context

This part belongs to the ADA4891 family of low-cost, high-speed CMOS amplifiers produced by Analog Devices. The series includes single, triple, and quad variants sharing identical core electrical characteristics. The dual-channel version offers a compact solution for multi-channel signal paths without requiring multiple discrete components.

Replacement Considerations

ADA4891-2ARMZ