ADA4817-1ARDZ

Overview

The ADA4817-1ARDZ is a single-channel, unity-gain stable, ultrahigh-speed voltage feedback operational amplifier featuring FET inputs. Developed using the proprietary XFCB process, it delivers a −3 dB bandwidth of 1050 MHz and a slew rate of 870 V/µs. 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 in either single or dual configurations. Key DC specifications include a maximum input offset voltage of 2 mV and a typical input bias current of 2 pA. The component is housed in an 8-lead SOIC package with an exposed paddle for thermal management.

Feature Summary

• Integrates FET input stage with XFCB technology to achieve high speed and ultralow noise simultaneously.
• Features a dedicated power-down pin that reduces quiescent current from 19 mA to below 2 mA when inactive.
• Utilizes a low distortion pinout arrangement to improve second harmonic distortion performance.
• Includes an exposed pad providing a low thermal resistance path to the PCB for efficient heat transfer.

Applications

• Photodiode amplifiers
• Data acquisition front ends
• ADC drivers
• Active filters

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct package type and temperature rating. Confirm availability status through authorized distributors as supply levels may vary. Ensure proper ESD handling procedures are followed during storage and assembly due to the sensitivity of the FET input structure.

Selection Notes

Select this component for applications requiring wideband signal processing with minimal noise contribution. The device is suitable for driving capacitive loads when paired with appropriate snubber networks. Consider the power-down functionality for systems requiring reduced standby consumption. Verify that the required gain bandwidth and settling time meet the specific system constraints.

Part Context

This part belongs to the ADA4817 family of FastFET amplifiers, which also includes the dual-channel ADA4817-2 variant. The family shares identical electrical characteristics but differs in packaging options. The ADA4817-1 is specifically designed for single-channel applications, offering flexibility in board layout compared to dual-channel counterparts while maintaining the same high-performance metrics.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.