ADA4899-1YRDZ-RL

Overview

The ADA4899-1YRDZ-RL is a unity-gain stable, ultralow noise voltage feedback operational amplifier featuring 1 nV/√Hz input voltage noise and less than -117 dBc distortion at 1 MHz. It delivers a 600 MHz bandwidth and 310 V/μs slew rate with a supply current of 14.7 mA. The device operates on a 5 V to 12 V supply range and includes a dedicated DISABLE pin for high-impedance output control and input bias current cancellation. It is housed in an 8-lead SOIC package.

Feature Summary

• Ultralow noise performance with 1 nV/√Hz input voltage noise density
• High-speed operation with 600 MHz bandwidth and 310 V/μs slew rate
• Integrated DISABLE pin enabling high-impedance output state and bias current cancellation
• Unity-gain stability combined with ultralow harmonic distortion

Applications

• Analog-to-digital drivers
• Instrumentation
• Filters
• IF and baseband amplifiers
• DAC buffers

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the reel packaging configuration. Ensure the component matches the exact part number specifications before integration into designs. Confirm availability status through authorized distribution channels as stock levels fluctuate.

Selection Notes

Select this component for applications requiring exceptional signal integrity and high-speed processing. The integrated disable feature supports time-interleaved systems driving shared ADCs. Consider the exposed paddle thermal requirements during PCB layout to ensure optimal heat dissipation and reliability under continuous operation.

Part Context

This component belongs to the ADA4899 series of high-speed operational amplifiers manufactured by Analog Devices Inc. The series is designed for demanding signal chain applications where low noise and high linearity are critical. The YRDZ-RL designation indicates the specific package type and tape-and-reel shipping format.

Replacement Considerations

ADA4899-1YRDZ

FAQ

How does the DISABLE pin affect input bias current?

Pulling the DISABLE pin within 0.7 V of the positive supply activates an internal bias current cancellation circuit, reducing the input bias current to less than 200 nA.

What is the purpose of the series resistor in unity-gain configurations?

A small series resistor (e.g., 24.9 Ω) is required at the noninverting input in unity-gain configurations to maintain stability and optimize noise performance.