ADA4938-2ACPZ-R7

Overview

The ADA4938-2ACPZ-R7 is a dual-channel, ultralow distortion differential amplifier designed as an ADC driver. It features a 1000 MHz small-signal bandwidth and a 4700 V/μs slew rate. The device operates on supply voltages ranging from +5 V to ±5 V with a quiescent current of 37 mA per channel. It provides low input voltage noise of 2.6 nV/√Hz and supports adjustable output common-mode voltage. The component is housed in a 24-lead LFCSP package.

Feature Summary

• Ultra-low harmonic distortion performance for high-fidelity signal processing
• Internal common-mode feedback loop ensures exceptional output balance
• Supports both differential-to-differential and single-ended-to-differential configurations
• Adjustable output common-mode voltage matches various ADC input requirements

Applications

• Driving high-performance analog-to-digital converters
• Single-ended-to-differential signal conversion
• Intermediate frequency and baseband gain modules
• Differential buffering applications

Procurement Notes

Verify the specific ordering suffix R7 against the manufacturer's current documentation to confirm reel packaging specifications. Ensure the component meets RoHS compliance standards required for your assembly process. Cross-reference the pinout configuration with the official datasheet to validate PCB layout compatibility before finalizing procurement orders.

Selection Notes

Select this component when driving high-resolution ADCs requiring wide dynamic range and minimal distortion. The dual-channel architecture allows for cost-effective implementation of multi-channel data acquisition systems. Consider the 24-lead LFCSP package constraints during thermal management planning to ensure operation within the specified industrial temperature range.

Part Context

This part belongs to the ADA4938 family of differential amplifiers manufactured by Analog Devices. The series utilizes proprietary third-generation high-voltage XFCB technology to achieve superior linearity and low noise characteristics. The dual-channel variant complements the single-channel version for applications requiring multiple independent signal paths.

Replacement Considerations

The ADA4938-1ACPZ-R7 serves as the single-channel equivalent within the same product family. Verify that the reduction from two channels to one aligns with system design requirements before substituting.