ADA4084-4ARUZ

Overview

The ADA4084-4ARUZ is a quad, single-supply operational amplifier featuring rail-to-rail input and output capabilities. It operates from +3 V to +30 V (±1.5 V to ±15 V) with a typical supply current of 0.625 mA per amplifier at ±15 V. The device offers a gain bandwidth product of 15.9 MHz and a typical slew rate of 4.6 V/µs. Key electrical characteristics include a maximum offset voltage of 100 µV (SOIC), low noise density of 3.9 nV/√Hz at 1 kHz, and high power supply rejection ratio of 117 dB. It is specified over an industrial temperature range of −40°C to +125°C.

Feature Summary

• Rail-to-rail input and output operation enables full signal swing in single-supply systems.
• Low power consumption with 0.625 mA typical supply current per amplifier.
• High precision performance with low offset voltage and low noise density.
• Unity-gain stable design suitable for filters and instrumentation applications.

Applications

• Battery-powered instrumentation
• High-side and low-side sensing
• Power supply control and protection
• Digital-to-analog converter (DAC) output amplifiers
• Analog-to-digital converter (ADC) input buffers

Procurement Notes

Verify the specific package type and ordering suffix against the manufacturer's official datasheet to ensure compatibility with your PCB footprint and thermal requirements. Confirm that the component meets all environmental and safety standards required for your final assembly process before procurement.

Selection Notes

Select this component for applications requiring both AC and precision DC performance in single-supply environments. It is suitable for driving transducers with wide output ranges, such as Hall effect, piezoelectric, and resistive sensors, where maintaining high signal-to-noise ratios is critical.

Part Context

The ADA4084-4ARUZ belongs to the ADA4084 series of high-voltage, low-noise operational amplifiers manufactured by Analog Devices. This series includes single (ADA4084-1), dual (ADA4084-2), and quad (ADA4084-4) variants, offering flexibility in channel count while maintaining consistent electrical characteristics across the family.

Replacement Considerations

Direct replacements within the same family include the ADA4084-1ARZ (single) and ADA4084-2ARZ (dual). For quad configurations, verify pinout compatibility if considering other manufacturers' rail-to-rail op-amps, as no direct cross-reference is explicitly documented in the provided source material.

FAQ

What is the maximum supply voltage for the ADA4084-4ARUZ?

The absolute maximum supply voltage rating is ±18 V. The guaranteed operating range is from +3 V to +30 V (or ±1.5 V to ±15 V).

Does the ADA4084-4ARUZ support shutdown mode?

No, the ADA4084-4ARUZ does not have a shutdown feature. It is designed for continuous operation within its specified temperature range.