ADA4000-2ARZ

Overview

The ADA4000-2ARZ 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 channel. Key electrical characteristics include a maximum offset voltage of 1.70 mV, a maximum bias current of 40 pA, and a voltage noise density of 16 nV/√Hz. 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 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 suitable for driving analog-to-digital converter inputs and buffering digital-to-analog outputs.

Applications

• Reference gain/buffers
• Level shift/driving
• Active filters
• Data acquisition systems
• Sample-and-hold circuits

Procurement Notes

Verify that the ordering suffix 'RZ' confirms RoHS compliance as specified in the manufacturer's documentation. Ensure the package option matches the required 8-Lead SOIC_N (R-8) footprint for PCB layout compatibility. Confirm the temperature grade covers the intended environmental operating range of -40°C to +125°C before finalizing procurement specifications.

Selection Notes

Select this component when a dual-channel configuration is required alongside JFET input characteristics such as low bias current and high input impedance. It is appropriate for applications demanding fast settling times and wide bandwidths within a standard SOIC package. Consider alternative pinouts if single or quad channel variants better suit the circuit topology requirements.

Part Context

This part belongs to the ADA4000 series of low-cost, precision JFET input operational amplifiers produced by Analog Devices Inc. The series includes single-channel (ADA4000-1), dual-channel (ADA4000-2), and quad-channel (ADA4000-4) versions. These devices are designed to offer a combination of high input impedance, low power consumption, and fast transient response for general-purpose instrumentation applications.

Replacement Considerations

Compatible substitutes within the same family include the ADA4000-1ARZ (single channel) and ADA4000-4ARZ (quad channel). Other packages in the series, such as the ADA4000-2ARMZ in MSOP format, provide equivalent electrical performance with different physical dimensions.