ADA4805-2ACPZ-R7

Overview

The ADA4805-2ACPZ-R7 is a dual-channel, high-speed voltage feedback operational amplifier manufactured by Analog Devices Inc. It features rail-to-rail outputs and ultralow supply current of 500 µA per amplifier. The device offers a -3 dB bandwidth of 105 MHz at a gain of +1 and a slew rate of 160 V/µs. It operates over a wide supply range from 2.7 V to 10 V and includes a shutdown pin for dynamic power scaling. Packaged in a 10-lead LFCSP (3x3 mm) with an exposed pad, it supports industrial temperatures from -40°C to +125°C.

Feature Summary

• Rail-to-rail output capability with input common-mode range extending below the negative supply rail.
• Ultralow quiescent current consumption of 500 µA per channel for efficient battery-powered operation.
• Integrated active-low shutdown pin enabling fast turn-on times and significant power reduction when disabled.
• High speed performance including 105 MHz bandwidth and low harmonic distortion suitable for precision signal processing.

Applications

• High resolution, high precision analog-to-digital converter drivers
• Battery-powered instrumentation systems
• Micropower active filters
• Portable point of sale terminals

Procurement Notes

Verify the specific package type and lead finish against the official datasheet before procurement. Confirm that the ordering suffix matches the required reel quantity and tape specifications. Ensure the component meets RoHS compliance requirements for your region. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit parts.

Selection Notes

Select this component for applications requiring both high speed and low power consumption. The dual configuration allows for cost-effective implementation of differential circuits or multi-channel signal conditioning. Consider the thermal resistance of the LFCSP package for heat dissipation in dense layouts. Verify that the supply voltage range aligns with the system's power rails.

Part Context

This part belongs to the ADA4805 family of rail-to-rail amplifiers designed for low power, high resolution data conversion systems. The dual version provides two independent channels in a compact footprint. It utilizes Analog Devices' XFCB process to achieve low noise and high speed simultaneously. The family is optimized for portable and battery-operated electronic devices.

Replacement Considerations

Check for functional equivalents within the same product family, such as single-channel variants if only one amplifier is needed. Verify pin compatibility and electrical specifications like bandwidth and offset voltage before substitution. Consult the manufacturer's documentation for recommended replacements or updated versions.