AD8604ARZ

Overview

The AD8604ARZ is a quad precision CMOS operational amplifier featuring rail-to-rail input and output capabilities. It operates on a single supply voltage ranging from 2.7 V to 5.5 V with a typical supply current of 750 µA per amplifier. The device offers an 8.4 MHz gain bandwidth product, a 6 V/µs slew rate at 5 V, and a maximum offset voltage of 600 µV (A Grade). Input bias current is typically 0.2 pA, ensuring minimal loading on high-impedance sources.

Feature Summary

• Utilizes DigiTrim technology for post-package trimming to achieve superior DC precision without laser trimming.
• Features true rail-to-rail architecture allowing input common-mode voltage range to extend to both supply rails.
• Provides low distortion and no phase reversal characteristics suitable for AC applications.
• Designed for unity-gain stability with excellent overload recovery times.

Applications

• Current sensing
• Barcode scanners
• Battery-powered instrumentation
• Multipole filters
• ASIC input or output amplifiers

Procurement Notes

Verify the specific grade suffix (e.g., ARZ) against the manufacturer's ordering guide to confirm performance specifications such as offset voltage limits. Ensure the package type matches the design footprint requirements. Confirm compliance with relevant environmental standards if applicable to the end application.

Selection Notes

Select this component when high precision and wide bandwidth are required in a single-supply environment. The quad configuration reduces board space compared to individual amplifiers. Consider the A Grade for tighter offset voltage specifications versus the D Grade for cost-sensitive designs.

Part Context

This part belongs to the AD8601/AD8602/AD8604 family of precision CMOS amplifiers. The AD8604 specifically provides four independent channels in a single package. The family shares core technologies like DigiTrim and rail-to-rail I/O stages, differing primarily in channel count and package options.

Replacement Considerations

Check pinout compatibility with existing designs. Verify that alternative components meet the 2.7 V to 5.5 V supply range and offer comparable rail-to-rail input/output swing. Ensure replacement parts maintain similar offset voltage and bias current specifications for precision applications.