ADA4941-1YRZ-RL

Overview

The ADA4941-1YRZ-RL is a single-supply, differential amplifier manufactured by Analog Devices Inc., designed to drive 18-bit analog-to-digital converters. It operates within a supply voltage range of 2.7 V to 12 V and features a gain bandwidth product of 31 MHz with a slew rate of 22 V/µs. The device provides a common-mode rejection ratio of 105 dB and delivers an output current of 25 mA per channel. Key electrical specifications include an input bias current of 4.5 µA, an input offset voltage of 100 µV, and a power supply rejection ratio of 100 dB. It consumes 2.5 mA of operating current and is housed in an SOIC-8 package.

Feature Summary

• Converts single-ended signals to differential outputs for high-resolution ADC interfacing
• Provides low noise performance and excellent linearity for signal integrity
• Features rail-to-rail output capability with wide input voltage range
• Includes a disable function to minimize power consumption when inactive

Applications

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

Procurement Notes

Verify the specific suffix RL indicates reel packaging configuration against official distributor catalogs. Confirm RoHS compliance status through manufacturer documentation. Ensure the ordering part number matches the required temperature grade and package variant. Cross-reference pinout assignments with the latest datasheet revision to avoid integration errors during PCB design.

Selection Notes

Select this component for applications requiring low power consumption while driving high-resolution ADCs. The device supports gains greater than two via external feedback networks. Evaluate thermal dissipation requirements based on the SOIC-8 package characteristics. Consider the wide supply voltage range for compatibility with various system power rails.

Part Context

This component belongs to the ADA4941-1 series of differential amplifiers from Analog Devices. It utilizes the proprietary XFCB process to achieve 18-bit performance at low supply currents. The series is optimized for driving PulSAR ADCs such as the AD7687 and AD7690. It offers both LFCSP and SOIC package options for flexible layout designs.

Replacement Considerations

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