AD8632ART

Overview

The UMW AD8632ART is a dual-channel, low-noise, micro-power CMOS operational amplifier. It operates on single or dual power supplies ranging from +2.3V to +5.5V. Key electrical specifications include a gain bandwidth product of 6.5MHz, a slew rate of 4V/µs, and a quiescent current of 480µA per amplifier at 5V. The device features rail-to-rail input and output capabilities, with an input common-mode voltage range extending from (VS– – 0.1V) to (VS+ + 0.1V). Maximum input offset voltage is specified at 4.2mV, and it maintains unit-gain stability.

Feature Summary

• Rail-to-rail input and output swing capability for maximum dynamic range in low-voltage systems
• Low noise performance with 20nV/√Hz density at 10kHz
• Micro-power operation with 480µA supply current per amplifier
• High slew rate of 4V/µs and wide bandwidth of 6.5MHz

Applications

• Photodiode amplification circuits
• Sensor signal interfaces
• Audio output stages
• Active filter designs
• Driving analog-to-digital converters

Procurement Notes

Verify the specific ordering code against the manufacturer's official documentation to ensure correct package selection. Confirm that the TSSOP-8 variant matches the required PCB footprint and pin pitch. Check RoHS compliance status and temperature range specifications relevant to the target application environment before finalizing procurement orders.

Selection Notes

Select this component for applications requiring high-speed signal processing within low-voltage constraints. The dual-channel configuration reduces board space compared to single-channel alternatives. Ensure the design accounts for the 4.2mV maximum offset voltage if precision DC amplification is critical. Verify that the load capacitance does not exceed stability limits without isolation resistors.

Part Context

This part belongs to the AD863xA family, which includes single (AD8631A), dual (AD8632A), and quad (AD8634A) variants. All members share identical electrical characteristics but differ in channel count and package options. The AD8632ART specifically denotes the dual-channel version housed in a TSSOP-8 package, designed for surface-mount assembly.

Replacement Considerations

Direct functional substitutes within the same family include the AD8631A (single channel) and AD8634A (quad channel). Cross-package equivalents such as the MSOP-8 or SOP-8 versions of the AD8632A may be used if pin compatibility allows.