ADA4000-4ARZ-RL

Overview

The ADA4000-4ARZ-RL is a quad, low-cost, precision JFET input operational amplifier manufactured by Analog Devices Inc. It features a high slew rate of 20 V/µs, fast settling time under 1.2 µs to 0.1%, and low offset voltage with a maximum of 1.70 mV. The device operates on supply voltages ranging from ±4 V to ±18 V, offering a gain bandwidth product of 5 MHz and low voltage noise density of 16 nV/√Hz. Input bias current is limited to a maximum of 40 pA, and the common-mode voltage range includes the positive supply rail. It is housed in a 14-Lead SOIC package.

Feature Summary

• JFET input structure providing high input impedance and very low bias current
• Unity gain stable operation with wide bandwidth and fast transient response
• Input common-mode voltage range extends to the positive power supply rail

Applications

• Driving analog-to-digital converter inputs
• Buffering digital-to-analog converter outputs
• High-side signal conditioning
• Instrumentation-quality photodiode amplification
• Fast precision filters including phase-locked loop filters

Procurement Notes

Verify that the ordering suffix -RL corresponds to the reel packaging format specified in the manufacturer's ordering guide. Confirm the package option matches the 14-Lead SOIC_N (R-14) designation. Ensure RoHS compliance requirements are met as indicated by the Z suffix in the base part number. Cross-reference the specific revision B datasheet for any updates to electrical characteristics or thermal resistance values before finalizing procurement specifications.

Selection Notes

Select this component when a quad configuration is required alongside JFET input characteristics such as low bias current and high impedance. It is suitable for applications demanding unity gain stability and a common-mode range that includes the positive supply. Consider the 1.70 mV maximum offset voltage and 16 nV/√Hz noise density for precision signal paths. Verify that the 14-Lead SOIC package fits the available PCB footprint constraints.

Part Context

This device belongs to the ADA4000 series of low-cost, precision JFET input operational amplifiers. The series includes single-channel (ADA4000-1), dual-channel (ADA4000-2), and quad-channel (ADA4000-4) variants. All variants share identical electrical performance characteristics, differing only in the number of amplifiers per package. The series is designed for general-purpose precision applications requiring low power consumption and high speed.

Replacement Considerations

ADA4000-4ARZ is the tube-packaged equivalent of the same quad amplifier. ADA4000-4ARUZ-RL offers the same electrical performance but utilizes a 14-Lead TSSOP package instead of SOIC.