ADA4627-1ACPZ-R7

Overview

The ADA4627-1ACPZ-R7 is a high-speed, low-noise JFET operational amplifier manufactured by Analog Devices Inc. It features a gain bandwidth product of 19 MHz and a slew rate of 82 V/µs. The device operates on dual supplies ranging from ±5 V to ±15 V with a supply current of 7 mA. Key electrical specifications include a maximum input offset voltage of 200 µV, an input bias current of 5 pA, and a voltage noise density of 6.1 nV/√Hz at 1 kHz. It is housed in an 8-lead LFCSP package and supports an extended operating temperature range from -40°C to +125°C.

Feature Summary

• Combines precision DC characteristics with high-speed AC performance for sensitive measurement applications.
• Features very low input bias current and low offset voltage drift suitable for high impedance sensors.
• Designed to prevent output phase reversal when inputs exceed the common-mode voltage range.

Applications

• High impedance sensor interfaces
• Photodiode amplifiers
• Precision instrumentation circuits

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ACPZ-R7 suffix corresponds to the 8-lead LFCSP tape and reel packaging format. Ensure compliance with RoHS directives and check for any recent manufacturing changes or obsolescence notices prior to finalizing procurement plans.

Selection Notes

Select this component for designs requiring both high bandwidth and low noise without compromising DC accuracy. It serves as a suitable replacement for legacy parts where low bias current is critical. Consider the LFCSP package size constraints and thermal dissipation requirements during the layout phase.

Part Context

This part belongs to the ADA4627/ADA4637 series of wide bandwidth precision amplifiers. While the ADA4637-1 is a decompensated variant stable only at gains of five or greater, the ADA4627-1 is unity gain stable. Both share similar core architectures but differ in frequency compensation strategies.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

FAQ

Is the ADA4627-1ACPZ-R7 unity gain stable?

Yes, the ADA4627-1 is a unity gain stable amplifier, unlike the decompensated ADA4637-1 which requires a minimum noise gain of five.

Does the device exhibit output phase reversal?

No, the ADA4627-1 is designed to prevent output phase reversal even if the input common-mode voltage exceeds the power supply rails.