ADA4062-2ARZ-R7

Overview

The ADA4062-2ARZ-R7 is a dual JFET-input operational amplifier from Analog Devices, housed in an 8-lead SOIC package. It operates on dual supplies ranging from ±5 V to ±15 V with a typical supply current of 165 μA per amplifier. Key electrical specifications include a maximum offset voltage of 2.5 mV (A grade), a typical slew rate of 3.3 V/μs, and a gain-bandwidth product of 1.4 MHz. The device features ultralow input bias current (50 pA max) and high input resistance (10 TΩ). It supports an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• JFET input architecture providing ultralow bias current and high input impedance
• Low power consumption suitable for battery-operated applications
• Phase reversal immunity when inputs exceed the common-mode range but remain within the positive supply rail
• Unity-gain stable operation with low noise density

Applications

• Active filters
• Data acquisition systems
• Industrial process controls
• Power controls and monitoring
• Input buffering

Procurement Notes

Verify the specific ordering suffix to confirm the package type and reel configuration. The -R7 suffix indicates tape and reel packaging. Confirm RoHS compliance status as indicated by the Z suffix. Ensure the A grade specification meets your offset voltage requirements compared to the B grade option.

Selection Notes

Select this component for applications requiring low power and high input impedance. The dual configuration allows for cost-effective implementation of instrumentation amplifiers or differential circuits. Consider the phase reversal characteristics if operating near supply rails. Verify thermal management requirements based on the SOIC package thermal resistance.

Part Context

This part belongs to the ADA4062 family of low-power JFET-input op amps. The family includes quad versions and various packages like MSOP and LFCSP. The ADA4062-2 specifically provides two amplifiers in one package, offering channel separation benefits over discrete solutions. It competes in the general-purpose precision amplifier market segment.

Replacement Considerations

ADA4062-2ARZ is available in tube packaging. ADA4062-2ARMZ offers an MSOP package alternative. Check pin compatibility and electrical parameter overlaps before substitution.

FAQ

Does the ADA4062-2 experience phase reversal?

No, the output does not phase reverse if one or both inputs exceed the input voltage range but remain within the positive supply rail and 0.5 V above the negative supply rail.

What is the typical input bias current?

The typical input bias current is 2 pA, with a maximum of 50 pA.