AD8542ARU-REEL

Overview

The AD8542ARU-REEL is a dual-channel CMOS operational amplifier featuring rail-to-rail input and output capabilities. It operates on a single supply voltage ranging from 2.7 V to 5.5 V with a low supply current of 45 µA per amplifier. The device provides a gain-bandwidth product of 1 MHz, ensuring unity-gain stability without phase reversal. Input bias current is typically 4 pA, supporting high source impedance applications. It functions reliably across an extended industrial temperature range of -40°C to +125°C.

Feature Summary

• Rail-to-rail input and output capability for maximum dynamic range in single-supply systems
• Low power consumption of 45 µA per amplifier suitable for battery-operated designs
• High input impedance with extremely low input bias current
• Unity-gain stable operation with no phase reversal issues

Applications

• ASIC input or output amplifiers
• Sensor interfaces
• Piezoelectric transducer amplifiers
• Medical instrumentation
• Portable systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and reel specifications. Ensure compliance with RoHS standards if required by your application. Cross-reference the part number with the latest datasheet revision to validate electrical characteristics and thermal resistance parameters before finalizing procurement decisions.

Selection Notes

Select this component when designing low-power, single-supply circuits requiring rail-to-rail signal swing. It is appropriate for buffering ASICs or interfacing with high-impedance sensors like piezoelectric elements. Consider its 1 MHz bandwidth and low quiescent current for portable and battery-powered applications where power efficiency is critical.

Part Context

This dual-channel amplifier belongs to the AD854x family, which includes single (AD8541) and quad (AD8544) variants. All members share similar electrical characteristics, including low supply current and wide bandwidth. The AD8542 specifically integrates two independent amplifiers in an 8-lead TSSOP package, offering a compact solution for multi-channel signal processing tasks.

Replacement Considerations

Direct functional replacements within the same family include AD8541ARMZ and AD8544ARMZ. Verify pin compatibility and electrical specifications against the target design requirements before substitution.