AD8138AARZ

Overview

The AD8138AARZ is a low distortion differential amplifier manufactured by Analog Devices Inc. It features a -3 dB bandwidth of 320 MHz at G = +1 and a slew rate of 1150 V/µs. The device settles to 0.01% in 16 ns with an overdrive recovery time of 4 ns. Input voltage noise is 5 nV/√Hz, and typical offset voltage is 1 mV. Operating supply ranges from +3 V to ±5 V, consuming 90 mW at 5 V. It is available in an 8-lead SOIC package.

Feature Summary

• Internal feedback architecture provides balanced output gain and phase matching while suppressing even-order harmonics.
• Adjustable output common-mode voltage via the VOCM pin allows easy level-shifting for single-supply ADC applications.
• External resistors allow flexible closed-loop gain configuration for various signal processing needs.

Applications

• ADC drivers
• Single-ended-to-differential converters
• IF and baseband gain blocks
• Differential buffers
• Line drivers

Procurement Notes

Verify the specific ordering suffix 'AARZ' against the manufacturer's official documentation to confirm package type and temperature range specifications. Ensure compatibility with the required PCB footprint and thermal management requirements for the selected package style before finalizing procurement.

Selection Notes

Select this component when high linearity and low harmonic distortion are critical for driving high-performance analog-to-digital converters. The wide supply range and adjustable common-mode output simplify interface design between single-ended sources and differential inputs without requiring external transformers.

Part Context

This part belongs to the AD8138 family of low distortion differential amplifiers designed for signal processing applications. Manufactured on the proprietary XFCB bipolar process, it offers superior performance compared to standard operational amplifiers used in differential configurations, specifically targeting data acquisition and communication systems.

Replacement Considerations

Consult the manufacturer's datasheet for confirmed substitute part numbers within the same product family or equivalent functional alternatives.