AD8694ARZ-REEL7

Overview

The AD8694ARZ-REEL7 is a quad, low-cost, low-noise CMOS operational amplifier with rail-to-rail output. It operates on a single supply from 2.7 V to 6 V and features a gain-bandwidth product of 10 MHz and a slew rate of 5 V/µs. The device exhibits a typical offset voltage of 400 µV, maximum input bias current of 1 pA, and voltage noise density of 8 nV/√Hz. It is housed in a 14-lead narrow SOIC package and functions within an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• Rail-to-rail output capability for maximizing dynamic range in single-supply applications
• Low offset voltage and drift characteristics ensuring high precision signal processing
• Very low input bias currents suitable for high-impedance sensor interfacing
• Wide bandwidth and low distortion performance beneficial for audio and AC applications

Applications

• Photodiode amplification circuits
• Battery-powered instrumentation systems
• Medical instruments requiring precise signal conditioning
• Multipole filter implementations
• Portable audio devices

Procurement Notes

Verify the specific ordering suffix REEL7 corresponds to the required reel quantity and packaging format before procurement. Confirm that the RoHS compliant status aligns with project environmental regulations. Ensure the 14-lead narrow SOIC footprint matches the PCB layout design constraints. Validate that the automotive qualification is not required, as this part represents the commercial grade variant.

Selection Notes

Select this component when a quad configuration is necessary to minimize board space compared to individual single or dual amplifiers. Consider its low noise and high speed for applications demanding accurate signal fidelity. Evaluate the 2.7 V minimum supply voltage against system power constraints. Compare the 10 MHz bandwidth against higher-speed requirements to ensure adequate phase margin and stability margins are maintained.

Part Context

This component belongs to the AD869x family of low-cost, low-noise CMOS operational amplifiers manufactured by Analog Devices. The family includes single (AD8691), dual (AD8692), and quad (AD8694) variants sharing identical electrical specifications. The AD8694ARZ-REEL7 specifically denotes the quad version packaged in a 14-lead narrow SOIC housing, intended for surface-mount assembly in compact electronic designs.

Replacement Considerations

Direct functional substitutes within the same family include the AD8694ARZ and AD8694ARZ-REEL. Automotive qualified equivalents are available as the AD8694WARUZ series. Verify pinout compatibility and thermal resistance values when transitioning between different package options such as TSSOP or standard SOIC.