ADA4610-2ARZ

Overview

The ADA4610-2ARZ is a dual precision JFET operational amplifier featuring rail-to-rail output. It offers a gain bandwidth product of 16.3 MHz and a slew rate up to 61 V/µs at ±15 V supplies. The device provides low offset voltage (B grade max 0.4 mV) and low noise density of 7.3 nV/√Hz at 1 kHz. Operating on dual supplies from ±5 V to ±15 V, it maintains stability with capacitive loads and avoids phase reversal.

Feature Summary

• JFET input architecture providing ultra-low input bias current
• Rail-to-rail output capability for maximum dynamic range
• Unity-gain stable design ensuring robust loop compensation
• Immunity to output phase reversal during common-mode excursions

Applications

• Medical instrumentation signal conditioning
• Precision photodiode amplifiers
• Multipole active filters
• High impedance sensor interfaces

Procurement Notes

Verify the specific B-grade offset voltage specifications against the latest Analog Devices datasheet revision I. Confirm that the 8-lead SOIC package matches the required PCB footprint dimensions. Ensure supply voltages remain within the ±18 V absolute maximum rating to prevent permanent damage.

Selection Notes

Select this component when high input impedance and low noise are critical requirements. The dual configuration reduces board space compared to single-channel alternatives. Verify thermal resistance values if operating near the +125°C upper temperature limit to ensure adequate heat dissipation in the final enclosure.

Part Context

This part belongs to the ADA4610 family of precision amplifiers, which includes single and quad variants. The dual version shares identical electrical characteristics with the other channel counts but differs only in pin count and physical package geometry. It is designed for applications requiring matched performance across multiple channels.

Replacement Considerations

ADA4610-2ARMZ

FAQ

Does the ADA4610-2ARZ suffer from output phase reversal?

No, unlike many older JFET amplifiers, the ADA4610-2ARZ does not experience output phase reversal when input voltages exceed the maximum common-mode voltage range.

What is the typical input bias current?

The typical input bias current is 5 pA, resulting from the precision JFET input stage.