ADA4941-1YRZ-R7

Overview

The ADA4941-1YRZ-R7 is a single-supply, differential amplifier designed to drive high-resolution analog-to-digital converters up to 18 bits. It features a gain bandwidth product of 31 MHz and a slew rate of 22 V/µs at G = +2. The device offers a common-mode rejection ratio of 105 dB and an input bias current of 4.5 µA. Operating on a supply voltage range of 2.7 V to 12 V, it consumes 2.5 mA of quiescent current. The output can source 25 mA with a maximum input resistance of 24 MΩ.

Feature Summary

• Converts single-ended signals to differential outputs for ADC interfacing
• Provides low noise performance suitable for high-resolution data acquisition
• Includes a disable feature to minimize power consumption in standby modes

Applications

• Single-supply data acquisition systems
• Battery-powered instrumentation
• Medical instrumentation devices
• Process control applications

Procurement Notes

Verify the specific suffix R7 indicates reel packaging when sourcing. Confirm the Y variant meets extended industrial temperature requirements if operating outside standard ranges. Ensure the SOIC-8 package footprint matches the target PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component for applications requiring low power consumption while driving 16-bit or 18-bit PulSAR ADCs. It is suitable for designs needing rail-to-rail output swing and user-adjustable gain via external feedback networks. Consider the 24 MΩ input impedance for high-impedance signal sources.

Part Context

This part belongs to the ADA4941 family of differential drivers manufactured using Analog Devices' XFCB process. It is optimized for driving high-resolution ADCs in power-sensitive environments. The device provides essential benefits such as low distortion and high signal-to-noise ratio required for precision data conversion tasks.

Replacement Considerations

ADA4940-1YRZ-R7