ADA4841-2YRZ-R7

Overview

The ADA4841-2YRZ-R7 is a dual-channel, unity-gain stable, low power, low noise and distortion rail-to-rail output amplifier manufactured by Analog Devices Inc. It features a quiescent current of 1.5 mA maximum per device, with a typical bandwidth of 80 MHz at a gain of +1. The amplifier provides a slew rate of 12 V/µs and settling time to 0.1% of 175 ns. Input voltage noise is 2.1 nV/√Hz at 100 kHz, while harmonic distortion reaches -105 dBc at 100 kHz. It operates on supply voltages ranging from 2.7 V to 12 V and supports an industrial temperature range of -40°C to +125°C.

Feature Summary

• Low wideband noise performance with 2.1 nV/√Hz voltage noise and 1.4 pA/√Hz current noise.
• Rail-to-rail output capability allowing signal swing within 50 mV of either supply rail.
• High linearity with excellent spurious-free dynamic range suitable for precision applications.
• Capable of driving capacitive loads up to 10 pF with minimal peaking.

Applications

• Battery-powered instrumentation
• 16-bit PulSAR ADC drivers
• Low power, low noise signal processing

Procurement Notes

Verify the specific ordering suffix YRZ-R7 against the manufacturer's official documentation to confirm the package type (SOIC) and reel packaging configuration. Ensure compatibility with the intended PCB footprint and reflow soldering profiles. Cross-reference the component marking with the datasheet outline dimensions to validate authenticity and prevent counterfeit risks during assembly.

Selection Notes

Select this component when a dual-channel amplifier requires low power consumption alongside high precision and speed. It is appropriate for designs needing rail-to-rail output swing on single or dual supplies. Consider its 80 MHz bandwidth and low offset voltage for applications demanding accurate signal conditioning without excessive power draw in portable systems.

Part Context

This part belongs to the ADA4841 family of amplifiers, which are designed using ADI's second-generation XFCB process. The series includes single-channel (ADA4841-1) and dual-channel (ADA4841-2) variants. These devices are engineered to support emerging 16-bit to 18-bit ADCs, offering a balance of low noise, low distortion, and efficient power usage for industrial and medical measurement systems.

Replacement Considerations

The ADA4841-1 serves as the single-channel counterpart within the same family. Verify pinout compatibility if substituting between channel counts. No other direct public substitute part numbers are confirmed in the provided documentation.