ADA4091-2ARZ-RL

Overview

The ADA4091-2ARZ-RL is a dual-channel micropower operational amplifier featuring rail-to-rail input and output capabilities. It operates from a single supply of 3.0 V to 30 V or dual supplies of ±1.5 V to ±15 V. Key electrical specifications include a gain-bandwidth product of 1.27 MHz, a slew rate of 0.46 V/µs, and a maximum input offset voltage of 250 µV at 25°C. The device draws 200 µA per amplifier and includes integrated overvoltage protection (OVP) on inputs. It is housed in an 8-lead SOIC package and functions within an industrial temperature range of -40°C to +125°C.

Feature Summary

• Features integrated overvoltage protection allowing safe input voltage excursions beyond supply rails without phase reversal or latch-up.
• Provides rail-to-rail input and output swing capability for maximizing dynamic range in low-voltage systems.
• Utilizes a unique input stage architecture that switches between PNP and NPN differential pairs to maintain linearity across the full common-mode voltage range.

Applications

• Industrial process control
• Battery-powered instrumentation
• Power supply control and protection
• Remote sensors

Procurement Notes

Verify the specific ordering suffix ARZ-RL against the manufacturer's current datasheet to confirm package type and reel packaging details. Ensure compatibility with the target PCB footprint for the 8-lead SOIC package. Confirm that the component meets all required environmental and safety certifications for the intended deployment region before finalizing procurement.

Selection Notes

Select this component when designing circuits requiring high precision with minimal power consumption in single-supply environments. The wide bandwidth and low noise characteristics make it suitable for signal conditioning tasks where maintaining signal integrity is critical. Consider the thermal resistance specifications if operating near the upper limits of the specified temperature range.

Part Context

This part belongs to the ADA4091 family of micropower, 36 V operational amplifiers manufactured by Analog Devices. The family includes dual-channel (ADA4091-2) and quad-channel (ADA4091-4) variants. These devices are designed to replace older generation amplifiers in applications demanding improved performance in terms of power efficiency and input/output voltage headroom.

Replacement Considerations

Direct pin-compatible replacements within the same family include the ADA4091-4 series for quad-channel requirements. Verify that any substitute maintains the same rail-to-rail input/output specifications and overvoltage protection ratings to ensure circuit functionality remains unchanged.