ADA4817-1ARDZ-R7

Overview

The ADA4817-1ARDZ-R7 is a single-channel, unity-gain stable, ultrahigh-speed voltage feedback operational amplifier featuring FET inputs. Manufactured using the proprietary eXtra fast complementary bipolar (XFCB) process, it delivers a −3 dB bandwidth of 1050 MHz and a slew rate of 870 V/µs at ±5 V supplies. The device exhibits low input noise with 4 nV/√Hz voltage noise and 2.5 fA/√Hz current noise at 100 kHz. It operates on supply voltages ranging from 5 V to 10 V, drawing 19 mA typical quiescent current per amplifier. The component includes a dedicated power-down pin to reduce current consumption to 1.5 mA when inactive.

Feature Summary

• Ultrahigh speed performance achieved via XFCB process technology
• Ultra-low input noise characteristics suitable for precision applications
• Integrated power-down functionality for significant current reduction
• Low distortion pinout design simplifies PCB layout

Applications

• Photodiode amplifiers
• Data acquisition front ends
• ADC drivers
• Wideband transimpedance applications

Procurement Notes

Verify package type compatibility, as the ADA4817-1 is available in both 8-lead LFCSP and SOIC formats. Confirm that the specific ordering suffix corresponds to the required reel packaging configuration. Ensure the design accounts for the exposed pad thermal requirements and proper power-down pin biasing to maintain intended operating states.

Selection Notes

Select this amplifier for circuits requiring high bandwidth and minimal noise without sacrificing input impedance. The wide supply range supports both single and dual supply architectures. Consider the linear output current capability when driving heavy loads or capacitive sources, utilizing snubber networks if necessary to maintain stability.

Part Context

This component belongs to the ADA4817 family of FastFET amplifiers, which combines high-speed FET input stages with low-noise performance. The family includes single-channel and dual-channel variants designed for wideband signal processing. These devices are optimized for applications demanding high linearity and fast transient response within an industrial temperature range.

Replacement Considerations

Public confirmed substitute part numbers: None.