ADA4896-2ARMZ-RL

Overview

The ADA4896-2ARMZ-RL is a dual-channel, unity-gain stable, low noise, rail-to-rail output, high-speed voltage feedback amplifier. It operates on a supply voltage range of 3 V to 10 V with a quiescent current of 3 mA per amplifier. The device features a -3 dB bandwidth of 230 MHz at G = +1 and a slew rate of 120 V/μs. Input voltage noise is 1 nV/√Hz at 100 kHz and 2.4 nV/√Hz at 10 Hz. It settles to 0.1% in 45 ns and offers an open-loop gain of 110 dB. The component operates over an extended industrial temperature range from −40°C to +125°C.

Feature Summary

• Rail-to-rail output stage designed for driving heavy feedback loads while maintaining overall low output referred noise.
• Proprietary next-generation SiGe bipolar process architecture enabling high speed and extremely low input 1/f noise.
• Low power consumption with a quiescent current of 3 mA per amplifier across a wide supply voltage range.

Applications

• Ultrasound amplifiers
• Low noise preamplifier
• High performance ADC drivers
• DAC buffers

Procurement Notes

Verify the specific package type matches the design requirements, as the ADA4896-2 series includes both LFCSP and MSOP options. Confirm that the ordering suffix corresponds to the correct reel quantity and tape configuration. Ensure the selected variant aligns with the required thermal resistance and pinout layout for the target PCB footprint.

Selection Notes

Select this component when a combination of low noise, high speed, and low power is required. It is suitable for applications needing rail-to-rail output swing without sacrificing bandwidth. Consider the 230 MHz bandwidth and 120 V/μs slew rate for fast signal processing tasks. Verify that the 3 mA quiescent current fits within the system's power budget constraints.

Part Context

The ADA4896-2 is part of a family of low noise, rail-to-rail output amplifiers manufactured using Analog Devices' proprietary SiGe bipolar process. This technology enables high performance characteristics such as low 1/f noise and high bandwidth. The dual-channel version provides two independent amplifiers in a single package, offering space efficiency for multi-channel signal conditioning applications.

Replacement Considerations

ADA4897-1

FAQ

Is the ADA4896-2 unity-gain stable?

Yes, the ADA4896-2 is a unity-gain stable voltage feedback amplifier.

What is the input offset voltage drift specification?

The input offset voltage drift is specified as 0.2 μV/°C.