AD8671ARMZ-R2

Overview

The AD8671ARMZ-R2 is a single-channel precision operational amplifier manufactured by Analog Devices Inc. It features very low noise of 2.8 nV/√Hz and low input bias current of 12 nA maximum. The device offers a gain bandwidth product of 10 MHz, a slew rate of 4 V/µs, and a maximum offset voltage of 75 µV. It operates on dual supplies ranging from ±5 V to ±15 V with a supply current of 3 mA per amplifier. The component is unity-gain stable, supports capacitive loads over 1000 pF, and functions within an extended industrial temperature range of -40°C to +125°C.

Feature Summary

• Very low voltage noise density for high signal integrity
• Low input bias current suitable for high-impedance sources
• Unity-gain stability without phase reversal
• Capacitive load drive capability exceeding 1000 pF

Applications

• PLL filters
• Filters for GPS
• Instrumentation
• Sensors and controls
• Professional quality audio

Procurement Notes

Verify the specific ordering suffix R2 against official documentation to confirm tape and reel packaging requirements. Ensure the selected package variant matches the required board space constraints. Confirm RoHS compliance status as indicated in the manufacturer's ordering guide. Validate that the extended industrial temperature range aligns with system environmental specifications before finalizing procurement.

Selection Notes

Select this component when ultralow noise combined with high precision is critical. The wide bandwidth and high open-loop gain support designs requiring accurate filtering or amplification. Consider the MSOP package option if minimizing printed circuit board area is a priority compared to standard SOIC packages. Verify power dissipation calculations to ensure junction temperatures remain within safe operating limits during continuous operation.

Part Context

This part belongs to the AD8671/AD8672/AD8674 series of precision operational amplifiers. The series combines ultralow noise, high precision, speed, and stability. While the AD8671 provides a single channel, the family includes dual and quad configurations. These devices are designed for applications demanding high performance in both DC accuracy and AC signal processing capabilities.

Replacement Considerations

Consult official documentation for confirmed substitute part numbers. No public substitutes are verified in the provided source material.