AD8672AR-REEL

Overview

The AD8672AR-REEL is a dual-channel precision operational amplifier from Analog Devices, housed in an 8-lead SOIC package. It features a gain bandwidth product of 10 MHz and a slew rate of 4 V/µs. The device exhibits very low noise with a density of 2.8 nV/√Hz at 1 kHz and peak-to-peak noise of 77 nV from 0.1 Hz to 10 Hz. Maximum input offset voltage is 75 µV, with a drift of 0.3 µV/°C. Input bias current is limited to 12 nA maximum. Supply current is typically 3 mA per amplifier, supporting dual supplies from ±5 V to ±15 V. It operates within an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• Unity-gain stable operation without output phase reversal when inputs exceed supply rails.
• Capable of driving large capacitive loads exceeding 1000 pF without instability.
• Combines ultralow noise, high open-loop gain, and wide bandwidth for precision signal conditioning.

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm compliance status and packaging details. Ensure the component matches the required pinout and thermal characteristics for the target application environment. Cross-reference the datasheet revision to validate electrical specifications before finalizing procurement decisions.

Selection Notes

Select this component for applications requiring high precision and low noise in bipolar signal paths. The dual configuration reduces board space compared to single-channel alternatives. Consider the 10 MHz bandwidth and 4 V/µs slew rate for mid-frequency signal processing tasks where low power consumption is also a priority.

Part Context

This part belongs to the AD8671/AD8672/AD8674 series of precision amplifiers designed by Analog Devices. The series emphasizes low noise and low offset voltage characteristics suitable for demanding analog signal processing environments. The AD8672 specifically provides two independent channels in a compact surface-mount package.

Replacement Considerations

Consult the manufacturer's ordering guide for direct equivalents. Verify that any substitute maintains the same channel count, package dimensions, and electrical performance limits.

FAQ

Does the AD8672 exhibit output phase reversal?

No, the AD8672 does not exhibit output phase reversal even when the input voltage exceeds the supply rails by up to 1 V.

What is the maximum capacitive load the AD8672 can drive?

The outputs are stable with capacitive loads of over 1000 pF.