General Description

The MAX4240–MAX4244 family of micropower op amps operate from a single +1.8V to +5.5V supply or dual ±0.9V to ±2.75V supplies and have Beyond-the-Rails™ inputs and rail-to-rail output capabilities. These amplifiers provide a 90kHz gain-bandwidth product while using only 10µA of supply current per amplifier.

Features

♦ Ultra-Low-Voltage Operation: Guaranteed Down to +1.8V Typical Operation to +1.5V

♦ Ultra-Low Power Consumption: 10µA Supply Current per Amplifier 1µA Shutdown Mode (MAX4241/MAX4243) Up to 200,000 Hours Operation from Two AA Alkaline Cells

♦ Beyond-the-Rails Input Common-Mode Range

♦ Outputs Swing Rail-to-Rail

♦ No Phase Reversal for Overdriven Inputs

♦ 200µV Input Offset Voltage

♦ Unity-Gain Stable for Capacitive Loads up to 200pF

♦ 90kHz Gain-Bandwidth Product

♦ Available in Space-Saving 5-Pin SOT23 and 8-Pin µMAX® Packages

Applications

    Two-Cell Battery Powered Systems

    Portable/Battery-Powered Electronic Equipment

    Digital Scales

    Strain Gauges

    Sensor Amplifiers

    Cellular Phones

    Notebook Computers

    PDAs