ADA4807-2ARMZ

Overview

The ADA4807-2ARMZ is a dual-channel, low noise, rail-to-rail input and output voltage feedback amplifier manufactured by Analog Devices. It combines high speed with DC precision, featuring an 180 MHz bandwidth and a 225 V/μs slew rate. The device operates on supply voltages ranging from 2.7 V to 11 V while consuming only 1 mA of quiescent current per amplifier. Key electrical specifications include a 3.1 nV/√Hz input voltage noise density, a maximum input offset voltage of ±125 μV, and a common-mode rejection ratio of 96 dB. It is housed in an 8-lead MSOP package.

Feature Summary

• Rail-to-rail input and output capabilities allow for maximum dynamic range operation across the full supply voltage range.
• Low power consumption of 1 mA per channel enables efficient operation in battery-powered and portable systems.
• Integrated active-low disable pin allows for precise power-down control with microamp-level standby currents.
• High slew rate and fast settling time support high-speed signal processing and data acquisition applications.

Applications

• High resolution analog-to-digital converter (ADC) drivers
• Portable and battery-powered instruments and systems
• High component density data acquisition systems
• Audio signal conditioning circuits
• Active filters

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct package type and reel configuration. Confirm that the required supply voltage range and temperature ratings align with the system design constraints. Cross-reference the part number with the latest datasheet revision to validate all electrical parameters before finalizing procurement decisions.

Selection Notes

Select this component when designing circuits that require both high-speed performance and low power consumption. The rail-to-rail I/O feature makes it suitable for single-supply applications where maximizing signal swing is critical. Ensure the load capacitance and drive requirements are within the specified limits to maintain stability and prevent oscillation during operation.

Part Context

This device belongs to the ADA4807 family, which includes single (ADA4807-1), dual (ADA4807-2), and quad (ADA4807-4) variants. All members share identical core electrical characteristics but differ in channel count and physical packaging options. The dual-channel version provides two independent amplifiers in a compact form factor, ideal for space-constrained designs requiring matched performance between channels.

Replacement Considerations

LT6237CMS8#PBF

FAQ

What is the function of the DISABLE pin?

The DISABLE pin is an active-low input that controls the power state of the amplifier. When driven low, it reduces the quiescent current to the microamp range, effectively powering down the device.

Does the ADA4807-2 support single-supply operation?

Yes, the device supports single-supply operation with a minimum operating voltage of 2.7 V. It features rail-to-rail inputs and outputs, allowing it to handle signals close to the ground and positive supply rails.