ADA4000-1ARZ-RL

Overview

The ADA4000-1ARZ-RL is a single-channel, low-cost, precision JFET input operational amplifier manufactured by Analog Devices Inc. It operates within a supply voltage range of ±4 V to ±18 V and features a gain bandwidth product of 5 MHz with a slew rate of 20 V/μs. The device exhibits a maximum offset voltage of 1.70 mV and a maximum input bias current of 40 pA at room temperature. It provides a voltage noise density of 16 nV/√Hz and settles to within 0.1% in less than 1.2 μs. The component is housed in an 8-Lead SOIC package (R-8) and supports operation from -40°C to +125°C.

Feature Summary

• JFET input structure providing high input impedance and very low bias current for precision signal conditioning.
• Wide bandwidth and fast settling time suitable for driving analog-to-digital converter inputs and buffering digital-to-analog outputs.
• Input common-mode voltage includes the positive power supply rail, enabling effective high-side signal processing.
• Unity gain stable design capable of driving capacitive loads up to 1000 pF without oscillation.

Applications

• Reference gain and buffer circuits
• Level shifting and signal driving
• Active filter implementations
• Power line monitoring and control systems
• Data acquisition front ends

Procurement Notes

Verify that the ordering suffix 'RL' corresponds to the reel packaging option as defined in the manufacturer's ordering guide. Confirm RoHS compliance status indicated by the 'Z' suffix. Ensure the selected package variant matches the required PCB footprint dimensions for the 8-Lead SOIC_N form factor.

Selection Notes

Select this component when high input impedance and low bias current are critical for maintaining signal integrity in precision applications. The wide supply voltage range accommodates various system architectures. Consider the phase reversal behavior if the input exceeds the common-mode range in unity gain configurations.

Part Context

This part belongs to the ADA4000 series of low-cost, precision JFET input operational amplifiers. The series includes dual-channel (ADA4000-2) and quad-channel (ADA4000-4) variants sharing similar electrical characteristics. The family is designed for general-purpose precision applications requiring low power consumption and high speed.

Replacement Considerations

Direct functional equivalents within the same family include the ADA4000-1AUJZ-R7 for TSOT-5 packaging or the ADA4000-1ARZ for tube packaging. Cross-family replacements require matching JFET input topology, bandwidth, and bias current specifications.