AD8604ARUZ

Overview

The AD8604ARUZ 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, and a maximum offset voltage of 600 µV at 25°C. Input bias current is typically 0.2 pA, and the unit is housed in a 14-lead TSSOP package.

Feature Summary

• Utilizes DigiTrim technology for post-package trimming to achieve superior DC precision without laser adjustment.
• Features true rail-to-rail architecture allowing input common-mode voltage range to extend to both supply rails.
• Designed for single-supply operation with low power consumption suitable for battery-powered applications.
• Includes internal input overvoltage protection and exhibits no phase reversal during overload conditions.

Applications

• Current sensing
• Barcode scanners
• PA controls
• Battery-powered instrumentation
• Multipole filters

Procurement Notes

Verify the specific grade (A or D) required for your application, as offset voltage specifications vary significantly between them. Confirm that the 14-lead TSSOP package matches your PCB footprint. Ensure the operating temperature range meets your environmental requirements, as the device is specified for -40°C to +125°C. Check for any automotive qualification needs if applicable.

Selection Notes

Select this component when high precision and wide bandwidth are required in a single-supply environment. The low input bias current makes it suitable for high-impedance sensor interfaces. Consider the A grade for tighter offset voltage tolerances compared to the D grade. Evaluate the trade-off between the 750 µA quiescent current and the system's power budget.

Part Context

This part belongs to the AD860x family of precision amplifiers, which includes single (AD8601), dual (AD8602), and quad (AD8604) configurations. All variants share similar electrical characteristics and utilize the same DigiTrim technology. The family is designed to provide cost-effective solutions for portable and industrial applications requiring rail-to-rail performance.

Replacement Considerations

Direct pin-compatible replacements within the same family include the AD8602ARUZ (dual channel) and AD8601ARUZ (single channel). For quad-channel equivalents with different performance profiles, consider other Analog Devices precision op amps, but verify pinout and electrical parameter compatibility carefully.

FAQ

Does the AD8604ARUZ exhibit phase reversal?

No, the AD8604ARUZ is designed to have no phase reversal, ensuring stable operation even under overload conditions.

What is the input common-mode voltage range?

The input common-mode voltage range extends to both the positive and negative supply rails due to its true rail-to-rail input architecture.

How does DigiTrim technology benefit the AD8604ARUZ?

DigiTrim allows for post-package trimming of the offset voltage, correcting errors caused by mechanical stresses during assembly and achieving higher precision than standard CMOS amplifiers.