ADA4500-2ACPZ-R7

Overview

The ADA4500-2ACPZ-R7 is a dual precision operational amplifier featuring rail-to-rail input and output capabilities. It operates on a single supply from 2.7 V to 5.5 V or dual supplies of ±1.35 V to ±2.75 V. Key electrical parameters include a gain bandwidth product of 10 MHz, an offset voltage maximum of 120 μV, and a low noise density of 14.5 nV/√Hz at 1 kHz. The device utilizes a zero-input crossover distortion topology to maintain high linearity across the full common-mode range.

Feature Summary

• Employs a novel zero-crossover distortion circuit topology to eliminate signal distortion typically associated with traditional complementary rail-to-rail input stages.
• Provides rail-to-rail input and output swings while maintaining excellent power supply rejection ratio (PSRR) and common-mode rejection ratio (CMRR).
• Features very low input bias current and low noise characteristics suitable for high-precision sensor applications.

Applications

• Pressure and position sensors
• Medical monitors
• Process controls
• Hazard detectors
• Photodiode applications

Procurement Notes

Verify the specific package variant against the datasheet ordering guide, as the component is available in both MSOP and LFCSP packages. Confirm that the R7 suffix corresponds to the reel packaging format required for your assembly process. Ensure compatibility with standard nominal voltages such as +3.0 V, +3.3 V, +5.0 V, and ±2.5 V during system design validation.

Selection Notes

Select this component when high linearity over the full rail-to-rail input common-mode range is critical. It is particularly suitable for driving analog-to-digital converters where output distortion must be minimized to maximize dynamic range. Consider its low power consumption and wide bandwidth for battery-powered handheld instrumentation and precision signal conditioning circuits.

Part Context

This part belongs to the ADA4500-2 series of dual amplifiers manufactured by Analog Devices Inc. It is designed for applications requiring high DC accuracy and AC performance without the crossover distortion found in standard CMOS amplifiers. The series supports extended industrial temperature ranges and is optimized for precision sensor interfaces.

Replacement Considerations

No public confirmed substitute part numbers are documented in the provided source material.

FAQ

How does the ADA4500-2 eliminate crossover distortion?

It uses an on-chip charge pump in its input structure to power the differential pair, allowing it to handle a wide range of input signal voltages without using a second differential pair.

What is the input voltage range capability?

The inputs operate rail-to-rail and can function up to 200 mV beyond the supply rails.