ADA4940-2ACPZ-R2

Overview

The ADA4940-2ACPZ-R2 is a dual-channel fully differential amplifier designed as an ultralow power, low distortion ADC driver. It features a small signal bandwidth of 260 MHz and a slew rate of 95 V/µs. The device operates on flexible power supplies ranging from 3 V to 7 V with a quiescent current of 1.25 mA per channel. It provides balanced outputs with adjustable common-mode voltage and includes a disable pin for power reduction.

Feature Summary

• Ultralow power consumption suitable for battery-operated applications
• Extremely low harmonic distortion for high-fidelity signal processing
• Adjustable output common-mode voltage to match various ADC inputs
• Internal common-mode feedback loop ensures exceptional output balance

Applications

• Low power PulSAR/SAR ADC drivers
• Single-ended-to-differential conversion
• Differential buffers
• Line drivers
• Medical imaging systems

Procurement Notes

Verify the specific package type and reel quantity against the manufacturer's ordering guide. Confirm that the component meets RoHS compliance standards required for your assembly process. Ensure the operating temperature range aligns with your system's environmental specifications before finalizing procurement.

Selection Notes

Select this component when driving high-resolution SAR or Sigma-Delta ADCs requiring minimal power consumption. The dual-channel configuration allows for efficient layout in differential signal paths. Consider the 24-lead LFCSP package for optimized PCB footprint and thermal performance compared to single-channel alternatives.

Part Context

This part belongs to the ADA4940 family of fully differential amplifiers manufactured by Analog Devices Inc. It is specifically engineered for data acquisition systems where low noise and low distortion are critical. The dual-channel variant offers two independent amplifier sections within a single compact package.

Replacement Considerations

The ADA4940-1 serves as the single-channel counterpart within the same family. For higher speed requirements, consider the ADA4932 series. Verify pin compatibility and electrical specifications when substituting with other differential amplifiers.