AD8632ARZ

Overview

The UMW AD8632ARZ is a dual-channel, low-noise, micro-power CMOS operational amplifier. It operates on single or dual supplies ranging from +2.3V to +5.5V. Key electrical parameters 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 is unit-gain stable. The component is rated for operation within an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• Rail-to-rail input and output capability allows full signal swing across the supply range.
• Low power consumption with 480μA quiescent current per amplifier supports battery-powered designs.
• High bandwidth and slew rate enable fast signal processing in active filter and sensor applications.
• Extended industrial temperature rating ensures reliable performance in harsh environments.

Applications

• Photodiode amplification
• Sensor interfaces
• Audio outputs
• Active filters
• Driving A/D converters

Procurement Notes

Verify that the ordering code matches the specific package variant required, such as SOP-8 or MSOP-8, as availability may vary by configuration. Confirm the manufacturer designation corresponds to UTD Semiconductor Co., Limited when sourcing components. Ensure the part number suffix aligns with the desired delivery mode, typically tape and reel for surface-mount assembly. Cross-reference the datasheet revision to confirm compatibility with existing design specifications.

Selection Notes

Select this component for applications requiring low noise and high precision in low-voltage systems. The CMOS architecture provides extremely low input bias current, making it suitable for high-impedance sources. Consider the 6.5MHz bandwidth and 4V/μs slew rate for dynamic signal requirements. Verify that the operating supply voltage falls within the 2.3V to 5.5V range and that the thermal environment remains within the specified -40°C to +125°C limits.

Part Context

The AD8632ARZ belongs to the AD863xA family of operational amplifiers, which includes single (AD8631A), dual (AD8632A), and quad (AD8634A) configurations. This family shares identical electrical characteristics and pinouts where applicable, allowing for flexible design scaling. The dual-channel version integrates two independent amplifiers in a compact 8-lead package, optimizing board space for multi-channel signal conditioning tasks.

Replacement Considerations

Direct functional substitutes within the same family include the AD8631A (single channel) and AD8634A (quad channel), provided the pinout and package dimensions are compatible with the existing footprint. Verify that any replacement maintains the same rail-to-rail input/output specifications and supply voltage range.