The Analog Devices ADA4940-2ACPZ-R7 is a dual differential ADC driver — two independent amplifier channels in a single 24-LFCSP (4x4) package. It is designed to drive high-performance ADCs, providing the differential signal conditioning needed between a sensor or front-end and the converter input. The dual-channel configuration saves board area compared to using two single drivers, and the 24-lead exposed-pad package helps with thermal management when both channels are running at full output.
The 24-LFCSP (4x4) is a fine-pitch, exposed-pad QFN-style package. It is surface-mount only — no socket option. For a field swap, you will need a hot-air station and a stencil or preform for the thermal pad solder paste.