ADA4000-2ARZ-RL

Overview

The ADA4000-2ARZ-RL is a dual-channel, low-cost, precision JFET input operational amplifier manufactured by Analog Devices Inc. It features a high slew rate of 20 V/µs and a wide bandwidth of 5 MHz. The device operates within a supply voltage range of ±4 V to ±18 V with a typical supply current of 1.35 mA per amplifier. Key electrical characteristics include a maximum offset voltage of 1.70 mV, a maximum input bias current of 40 pA, and a voltage noise density of 16 nV/√Hz at 1 kHz. It is unity gain stable and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• JFET input structure providing high input impedance and very low input bias current for precision signal conditioning.
• Input common-mode voltage includes the positive power supply rail, enabling effective high-side signal processing.
• Fast settling time capability allows rapid stabilization required in data acquisition systems.
• Capable of driving capacitive loads up to 1000 pF without oscillation in unity gain configurations.

Applications

• Driving analog-to-digital converter inputs
• Buffering digital-to-analog converter outputs
• High-side signal conditioning
• Instrumentation-quality photodiode amplification

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 8-Lead SOIC_N (R-8) physical dimensions. Ensure the RoHS compliant status indicated by the 'Z' suffix aligns with project material requirements. Cross-reference the specific part number against the latest datasheet revision B documentation to validate all electrical parameters.

Selection Notes

Select this component when a dual-channel configuration is required alongside JFET input characteristics. The device offers a balance of low cost and precision performance suitable for general-purpose instrumentation. Consider the 5 MHz bandwidth and 20 V/µs slew rate for applications requiring moderate speed. Verify that the ±4 V to ±18 V supply range fits the system power architecture.

Part Context

This device belongs to the ADA4000 series, which includes single-channel (ADA4000-1), dual-channel (ADA4000-2), and quad-channel (ADA4000-4) variants. All members share identical electrical specifications but differ in channel count and package options. The series utilizes JFET input technology to achieve low bias currents and high input impedance across the family.

Replacement Considerations

ADA4000-2ARZ

FAQ

Does the input common-mode voltage range include the positive supply rail?

Yes, the input common-mode voltage includes the positive power supply (+VS), making the device suitable for high-side signal conditioning applications.

What is the maximum capacitive load the device can drive?

The device is capable of driving up to 1000 pF of capacitive loads without oscillations in unity gain configurations.