ADA4075-2ARZ

Overview

The ADA4075-2ARZ is a dual, high-performance, ultralow noise operational amplifier manufactured by Analog Devices Inc. utilizing the iPolar process for superior DC and AC characteristics. It operates on dual supplies ranging from ±4.5 V to ±18 V with a typical supply current of 1.8 mA per amplifier. Key electrical parameters include a gain bandwidth product of 6.5 MHz, a slew rate of 12 V/µs, and an input voltage noise density of 2.8 nV/√Hz at 1 kHz. The device features a maximum offset voltage of 1 mV and total harmonic distortion plus noise of 0.0002%. It is specified for operation within an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• Ultralow noise performance combined with low power consumption
• High slew rate and wide bandwidth for fast signal processing
• Phase reversal prevention circuitry for enhanced stability
• Unity-gain stable design suitable for direct feedback configurations

Applications

• Precision instrumentation
• Professional audio systems
• Active filters
• Low noise amplifier front ends
• Integrators

Procurement Notes

Verify that the ordering suffix ARZ corresponds specifically to the 8-lead SOIC package variant. Confirm the revision level matches the required datasheet specifications. Ensure the component meets the extended industrial temperature range requirements for the intended operating environment. Cross-reference the manufacturer part number with official Analog Devices documentation to validate authenticity and technical compliance before integration.

Selection Notes

Select this component when ultralow noise and high fidelity are critical alongside moderate power constraints. The 6.5 MHz bandwidth and 12 V/µs slew rate support high-speed applications requiring minimal distortion. Consider the dual-channel configuration for space-constrained designs needing two independent amplifiers. Verify that the ±4.5 V to ±18 V supply range aligns with the system power architecture.

Part Context

This device belongs to the ADA4075 series of low noise precision operational amplifiers. It is designed using the iPolar process, which implements vertical junction isolation with lateral trench isolation. This technology enables smaller die sizes while maintaining high speed and low power consumption compared to traditional bipolar processes.

Replacement Considerations

Consult official Analog Devices documentation for verified substitute part numbers. Do not assume functional equivalence based on generic family similarities without confirming specific parameter alignment.