AD8672ARMZ-REEL

Overview

The AD8672ARMZ-REEL is a dual-channel precision operational amplifier from Analog Devices, housed in an 8-lead MSOP package and supplied in tape and reel format. It features very low voltage noise density of 2.8 nV/√Hz at 1 kHz and peak-to-peak noise of 77 nV from 0.1 Hz to 10 Hz. The device offers a gain bandwidth product of 10 MHz, a slew rate of 4 V/µs, and a maximum input offset voltage of 75 µV. Operating on dual supplies ranging from ±5 V to ±15 V, it draws a typical supply current of 3 mA per amplifier. The unit supports an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• Very low noise performance with minimal offset voltage and drift for high-precision signal conditioning
• Unity-gain stable operation without output phase reversal when inputs exceed the supply rails
• Capable of driving large capacitive loads exceeding 1000 pF without instability
• Low input bias current reduces loading effects on high-impedance signal sources

Applications

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

Procurement Notes

Verify that the ordering suffix REEL corresponds to the tape and reel packaging configuration required for automated surface-mount assembly processes. Confirm the specific MSOP variant matches the footprint requirements of the target PCB design. Ensure the RoHS compliant status aligns with environmental regulations applicable to the manufacturing region. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity and revision level before finalizing procurement orders.

Selection Notes

Select this component when circuit designs demand extremely low noise combined with high DC accuracy. The wide bandwidth and fast slew rate support applications requiring rapid signal response alongside precise amplification. Consider the compact MSOP package size if board space is constrained compared to standard SOIC footprints. Verify that the power supply architecture accommodates the specified dual-voltage operating range for optimal performance.

Part Context

This device belongs to the AD8671/AD8672/AD8674 family of precision operational amplifiers designed by Analog Devices. The series emphasizes ultralow noise, high speed, and stability within a single integrated circuit solution. While the AD8671 provides a single channel and the AD8674 offers four channels, the AD8672 specifically integrates two independent amplifiers in one package, balancing performance density with system complexity.

Replacement Considerations

The AD8672ARZ serves as a direct pin-compatible alternative utilizing an 8-lead SOIC package instead of MSOP.