ADA4091-4ARUZ-RL

Overview

The ADA4091-4ARUZ-RL is a quad micropower operational amplifier featuring rail-to-rail inputs and outputs. 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. The device provides overvoltage protection (OVP) allowing inputs to exceed supply rails without phase reversal. It consumes 200 µA per amplifier and functions within an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• Features overvoltage protection (OVP) that allows input voltages to safely exceed supply rails without causing phase reversal or latch-up.
• Provides rail-to-rail output swing capability for maximizing dynamic range in low-voltage systems.
• Utilizes a unique input stage architecture combining PNP and NPN differential pairs to ensure continuous operation across the full common-mode voltage range.

Applications

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

Procurement Notes

Verify the specific package variant against the datasheet ordering guide, as the ARUZ suffix denotes a 14-lead TSSOP package. Confirm that the -RL suffix corresponds to the reel packaging format required for your assembly line. Ensure the component meets RoHS standards if applicable to your manufacturing requirements. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before procurement.

Selection Notes

Select this component when designing circuits requiring high precision with minimal power consumption. The wide input voltage range and OVP make it suitable for interfacing with transducers that may produce signals exceeding the system supply. Consider the 1.2 MHz bandwidth and 0.46 V/µs slew rate for applications demanding moderate speed. The quad configuration reduces board space compared to using multiple dual-channel amplifiers.

Part Context

This device belongs to the ADA4091 family of low-power, 36 V operational amplifiers manufactured by Analog Devices. The quad version integrates four independent amplifiers into a single package, offering a compact solution for multi-channel signal conditioning. It complements other products in the portfolio such as the ADA4091-2 dual version and higher-speed JFET amplifiers like the ADA4000 series.

Replacement Considerations

The ADA4091-4ARUZ is the direct equivalent part number for the ADA4091-4ARUZ-RL, differing only in packaging format (tube vs. reel). Verify pinout compatibility and thermal characteristics when substituting with other quad amplifiers from the same family.