MAX4243EUB-T

Instrumentation, Op Amps, Buffer Amps Overview

The MAX4243EUB-T is a dual-channel micropower operational amplifier from the MAX4240–MAX4244 family. It operates on a single +1.8V to +5.5V supply or dual ±0.9V to ±2.75V supplies, consuming 10µA per amplifier. Key electrical parameters include a 90kHz gain-bandwidth product, 40V/ms slew rate, and 70nV/√Hz input voltage noise density. The device features Beyond-the-Rails inputs extending 200mV beyond each rail and rail-to-rail outputs. It includes a low-power shutdown mode reducing current to under 1µA. Operating temperature range is -40°C to +85°C in a 10-pin µMAX package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Beyond-the-Rails input common-mode range extends 200mV beyond both supply rails
• Rail-to-rail output capability allows full power-supply voltage utilization for signal range
• Low-power shutdown mode reduces supply current to less than 1µA per amplifier
• Unity-gain stable with capacitive loads up to 200pF without phase reversal

Instrumentation, Op Amps, Buffer Amps Applications

• Two-cell battery-powered systems
• Portable/battery-powered electronic equipment
• Digital scales
• Strain gauges
• Sensor amplifiers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix EUB-T against the manufacturer's official documentation to confirm the package type (µMAX) and tape-and-reel delivery format. Ensure the component meets RoHS compliance requirements if applicable to your design specifications. Cross-reference the part number with the latest datasheet revision to confirm availability status and any potential obsolescence notices before finalizing procurement plans.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for applications requiring ultra-low voltage operation down to 1.8V with minimal power consumption. The dual-channel configuration with shutdown functionality makes it suitable for portable devices where battery life is critical. Ensure the circuit design accounts for the Beyond-the-Rails input characteristics and matches source impedances to minimize offset errors caused by input bias current polarity changes.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the MAX4240–MAX4244 family of micropower op amps designed for precision, low-voltage applications. The MAX4243 specifically provides two channels with shutdown control, distinguishing it from the non-shutdown MAX4240/MAX4242 variants. The family shares core performance metrics like 90kHz bandwidth and 10µA quiescent current, optimized for space-saving packages including SOT23 and µMAX.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct substitutes within the same family include MAX4243EUA (single channel, µMAX), MAX4243ESA (single channel, SO), MAX4243ESD (dual channel, SOIC). Verify pinout compatibility and package dimensions when substituting between µMAX and SO/SOIC formats.