ADA4084-2ACPZ-RL

Overview

The ADA4084-2ACPZ-RL is a dual-channel, low noise, rail-to-rail input/output operational amplifier manufactured by Analog Devices. It operates from a single supply of +3 V to +30 V or dual supplies of ±1.5 V to ±15 V. Key electrical specifications include a typical gain bandwidth product of 15.9 MHz and a unity-gain crossover frequency of 9.9 MHz at ±15 V. The device features a typical voltage noise density of 3.9 nV/√Hz at 1 kHz and a maximum offset voltage of 200 µV in the LFCSP package. It draws a typical supply current of 0.625 mA per amplifier at ±15 V and functions within an industrial temperature range of −40°C to +125°C.

Feature Summary

• Features rail-to-rail input and output capabilities for maximizing dynamic range in single-supply systems.
• Combines low power consumption with high precision, offering low offset voltage and low noise performance.
• Designed for unity-gain stability with wide bandwidth suitable for active filtering applications.

Applications

• Battery-powered instrumentation
• High-side and low-side sensing
• Power supply control and protection
• Telecommunications equipment
• Analog-to-digital converter (ADC) input buffers

Procurement Notes

Verify the specific package type and ordering suffix against the manufacturer's official documentation before procurement. Confirm that the component meets all required environmental and electrical specifications for the intended application. Ensure compatibility with existing design constraints regarding supply voltage and thermal management.

Selection Notes

Select this component for applications requiring both AC signal processing and precise DC performance in single-supply environments. Consider the trade-off between the low power consumption and the moderate slew rate when designing high-speed circuits. Evaluate the package options based on thermal requirements and available PCB space.

Part Context

This part belongs to the ADA4084 series, which includes single, dual, and quad amplifier variants. The series is characterized by high-voltage operation, low noise, and rail-to-rail I/O capabilities. It is designed to replace older generation amplifiers in portable and industrial applications where power efficiency and signal integrity are critical.

Replacement Considerations

Direct replacements may include other parts from the ADA4084 family such as the ADA4084-1 or ADA4084-4, depending on channel count requirements. Verify pinout compatibility and electrical parameter alignment with the original design specifications.

FAQ

Is the ADA4084-2ACPZ-RL unity-gain stable?

Yes, the ADA4084-2ACPZ-RL is guaranteed to be unity-gain stable.

What is the operating temperature range for this amplifier?

The device is specified over the industrial temperature range of −40°C to +125°C.