ADA4091-4ARUZ

Overview

The ADA4091-4ARUZ 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 parameters include a gain bandwidth product of 1.27 MHz, a slew rate of 0.46 V/µs, and a maximum offset voltage of 250 µV at 25°C. The device draws 200 µA per amplifier and includes overvoltage protection (OVP) allowing input voltages to exceed supply rails without phase reversal.

Feature Summary

• Features rail-to-rail input and output capabilities for maximizing dynamic range in low-voltage systems.
• Includes overvoltage protection (OVP) that prevents phase reversal or latch-up when input signals exceed supply rails.
• Designed for micropower operation with a supply current of 200 µA per amplifier channel.

Applications

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

Procurement Notes

Verify the specific package type and temperature grade against project requirements before ordering. Confirm that the 14-lead TSSOP footprint matches the PCB layout. Ensure supply voltage limits are respected to maintain OVP functionality. Check for any recent revision changes in the datasheet that might affect pinout or thermal characteristics.

Selection Notes

Select this component for applications requiring low power consumption alongside precision signal conditioning. The quad configuration reduces board space compared to individual amplifiers. Consider the 1.2 MHz bandwidth for moderate-speed signal processing. Verify that the 250 µV offset voltage meets system accuracy needs without external trimming.

Part Context

This part belongs to the ADA4091 family of low-power, 36 V operational amplifiers. It is the quad-channel variant of the ADA4091-2 dual amplifier. The ARUZ suffix denotes the 14-lead Thin Shrink Small Outline Package (TSSOP). It complements other Analog Devices precision amplifiers designed for single-supply industrial applications.

Replacement Considerations

ADA4091-4ARUZ-RL is the reel version of the same component. ADA4091-4ACPZ-R7 is the quad variant in an LFCSP package. Cross-package replacements require PCB layout modifications.