ADA4062-2ARMZ

Overview

The ADA4062-2ARMZ is a dual JFET-input operational amplifier from Analog Devices, housed in an 8-lead MSOP 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) and 1.5 mV (B grade), an input bias current of 50 pA maximum, and a slew rate of 3.3 V/μs. The device features a gain bandwidth product of 1.4 MHz and operates within an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• JFET input stage providing ultralow bias current and high input impedance
• Low power consumption suitable for battery-operated systems
• Unity-gain stable operation with low offset voltage and drift
• Extended industrial temperature range capability

Applications

• Power controls and monitoring
• Active filters
• Industrial/process controls
• Body probe electronics
• Data acquisition

Procurement Notes

Verify the specific grade (A or B) and package variant when ordering, as offset voltage specifications vary by grade. Confirm that the 8-lead MSOP option matches the required PCB footprint. Ensure supply voltages are established simultaneously with input signals to prevent damage. Check for RoHS compliance markings if environmental regulations apply to the final assembly.

Selection Notes

Select this component for applications requiring low power and high input impedance. The dual configuration reduces board space compared to single amplifiers. Consider the A grade for general precision needs or the B grade for tighter offset voltage requirements in SOIC packages. Evaluate thermal resistance values for the MSOP package if operating at elevated temperatures or high load currents.

Part Context

This part belongs to the ADA4062 family of low-power JFET-input op amps, which also includes quad variants like the ADA4062-4. The family is designed for instrumentation and industrial applications where low noise and low bias current are critical. The ARMZ suffix indicates a lead-free, RoHS-compliant version in the Mini Small Outline Package.

Replacement Considerations

Direct substitutes within the same family include the ADA4062-2ARZ (SOIC package) or ADA4062-2ACPZ (LFCSP package). Cross-family replacements require verification of pin compatibility, supply voltage ranges, and electrical performance metrics such as offset voltage and bias current.