ADA4817-1ACPZ-R7

Overview

The ADA4817-1ACPZ-R7 is a single-channel, unity-gain stable, ultrahigh-speed voltage feedback operational amplifier with FET inputs. Manufactured using Analog Devices' proprietary eXtra Fast Complementary Bipolar (XFCB) process, it delivers a −3 dB bandwidth of 1050 MHz and a slew rate of 870 V/µs. The device features low input noise of 4 nV/√Hz at 100 kHz and an input bias current of 2 pA typical. It operates on supply voltages ranging from 5 V to 10 V in either single or dual configurations. The component includes a dedicated power-down pin to reduce quiescent current from 19 mA to 1.5 mA when inactive.

Feature Summary

• Integrates FET inputs with XFCB technology for ultralow noise and high input impedance
• Provides ultrahigh speed performance with 1050 MHz bandwidth and 870 V/µs slew rate
• Features a dedicated power-down control pin for significant current reduction during idle states
• Utilizes a low distortion pinout architecture to improve second harmonic distortion and simplify layout

Applications

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

Procurement Notes

Verify the specific package variant against the datasheet ordering guide, as the ACPZ suffix denotes the 8-lead LFCSP package. Confirm that the required thermal management aligns with the specified junction temperature limits and PCB thermal resistance values. Ensure the design accommodates the exposed pad connection requirements for optimal heat dissipation and electrical performance.

Selection Notes

Select this component for applications requiring both high bandwidth and low input capacitance, such as wideband transimpedance amplification. The device is suitable for systems operating within the 5 V to 10 V supply range. Consider the available packages; the LFCSP offers lower thermal resistance compared to the SOIC option. Evaluate the need for the power-down feature if system power efficiency during standby periods is a critical design constraint.

Part Context

This part belongs to the ADA4817 family of FastFET amplifiers, which also includes the dual-channel ADA4817-2. These devices are designed to bridge the gap between high-speed bipolar op amps and low-noise JFET amplifiers. The family utilizes specialized manufacturing processes to achieve performance metrics that exceed standard FET input amplifiers while maintaining low noise characteristics essential for precision signal conditioning.

Replacement Considerations

The dual-channel equivalent is the ADA4817-2. For single-channel replacements, verify compatibility with the specific package type (LFCSP vs. SOIC) and ensure that any substitute maintains the 1050 MHz bandwidth and 2 pA input bias current specifications.