ADA4941-1YRZ

Overview

The ADA4941-1YRZ is a single-supply, differential amplifier manufactured by Analog Devices Inc. in an 8-lead SOIC package. It operates within a supply voltage range of 2.7 V to 12 V and supports an extended industrial temperature range from -40°C to +85°C. The device features a gain bandwidth product of 31 MHz and a slew rate of 22 V/µs. Key electrical parameters include a common-mode rejection ratio of 105 dB, a power supply rejection ratio of 100 dB, and a maximum output current of 25 mA per channel. Input bias current is specified at 4.5 µA with an input offset voltage of 100 µV.

Feature Summary

• Converts single-ended signals to differential outputs for high-resolution ADC driving
• Provides low noise performance with extremely low quiescent current consumption
• Features rail-to-rail output capability and user-adjustable gain configurations
• Includes a dedicated disable pin for system power management

Applications

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

Procurement Notes

Verify the specific suffix 'YRZ' corresponds to the 8-lead SOIC package variant when sourcing. Confirm that the operating temperature range meets the application requirements of -40°C to +85°C. Ensure the supply voltage constraints between 2.7 V and 12 V align with the system design. Cross-reference the manufacturer part number with official Analog Devices documentation to validate authenticity and revision status before procurement.

Selection Notes

Select this component for applications requiring low-power differential signal conditioning for 16-bit to 18-bit ADCs. The device is suitable where high input impedance and low distortion are critical. Consider the SOIC-8 package for standard surface-mount assembly processes. Evaluate the 31 MHz bandwidth against the required signal frequencies to ensure adequate performance margins for the target data conversion rates.

Part Context

This component belongs to the ADA4941-1 series of differential amplifiers designed specifically for driving analog-to-digital converters. It utilizes Analog Devices' proprietary XFCB process to achieve high performance at low supply currents. The series includes variants such as the LFCSP package option, offering flexibility in board space constraints while maintaining identical electrical characteristics across package types.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.