AD8531AR-REEL

Overview

The AD8531AR-REEL is a single-channel, rail-to-rail input/output operational amplifier from Analog Devices. It operates on a single supply voltage ranging from 2.7 V to 6 V and delivers a high output drive current of ±250 mA. The device features a gain bandwidth product of 3 MHz and a slew rate of 5 V/μs at 5 V supplies. Input bias current is typically 50 pA, with an offset voltage of 25 mV. It consumes 750 μA per amplifier and functions within an industrial temperature range of −40°C to +85°C.

Feature Summary

• Single-supply operation with rail-to-rail input and output capabilities
• High output drive current of ±250 mA for resistive or capacitive loads
• Low supply current consumption of 750 μA per amplifier
• No phase reversal when inputs exceed the common-mode range

Applications

• Multimedia audio amplification
• LCD drivers
• ASIC input or output buffering
• Headphone drivers

Procurement Notes

Verify the specific package suffix 'R' corresponds to the 8-lead SOIC configuration required for your PCB layout. Confirm that the REEL designation matches your automated assembly equipment specifications. Ensure the component meets RoHS compliance standards if mandated by your manufacturing regulations. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity before procurement.

Selection Notes

Select this component when driving heavy capacitive loads such as LCD panels or requiring high current delivery in single-supply systems. It is suitable for buffering CMOS DACs or ASICs where wide output swing is necessary. Consider its low power consumption relative to its drive capability for battery-operated applications requiring efficient load control without excessive heat dissipation.

Part Context

This device belongs to the AD853x family, which includes dual (AD8532) and quad (AD8534) variants. All members share identical electrical characteristics but differ in channel count and package options. The AD8531 specifically provides a single amplifier in surface-mount packages including SOIC, SC70, and SOT-23, designed for cost-sensitive, space-constrained designs.

Replacement Considerations

Direct functional substitutes within the same family include the AD8532 and AD8534, provided pin compatibility and channel requirements align. Verify package dimensions and thermal resistance values when substituting between different footprint types such as SOIC versus MSOP.