ADA4000-4ARZ-R7

Overview

The ADA4000-4ARZ-R7 is a quad precision JFET input operational amplifier manufactured by Analog Devices Inc. It features a gain bandwidth product of 5 MHz, a slew rate of 20 V/µs, and an input offset voltage maximum of 1.70 mV. The device operates on supply voltages ranging from ±4 V to ±18 V with a typical supply current of 1.35 mA per amplifier. It provides low voltage noise density of 16 nV/√Hz and input bias current up to 40 pA. Packaged in a 14-Lead SOIC (R-14) format, it supports operation from -40°C to +125°C.

Feature Summary

• JFET input structure providing high input impedance and very low bias current
• Unity gain stable with wide bandwidth and fast settling time
• Input common-mode voltage range includes 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 the package type matches the required PCB footprint, specifically the 14-Lead SOIC (R-14). Confirm the suffix indicates reel packaging for automated assembly. Ensure the temperature range covers the intended operating environment. Check RoHS compliance status if required by manufacturing standards.

Selection Notes

Select this component when multiple channels are needed in a single package to save board space. The JFET input is suitable for high-impedance sources requiring minimal loading. Consider the 5 MHz bandwidth and 20 V/µs slew rate for applications requiring moderate speed and precision without excessive power consumption.

Part Context

This part belongs to the ADA4000 series, which includes single (ADA4000-1), dual (ADA4000-2), and quad (ADA4000-4) variants. All versions share identical electrical characteristics but differ in channel count and pinout configuration. The series is designed for low-cost, precision signal conditioning applications.

Replacement Considerations

ADA4000-4ARZ is the tube version of the same device. ADA4000-4ARUZ-RL is the TSSOP package equivalent.