General Description

The single MAX4036/MAX4037 and dual MAX4038/MAX4039 operational amplifiers operate from a single +1.4V to +3.6V (without reference) or +1.8V to +3.6V (with reference) supply and consume only 800nA of supply current per amplifier, and 1.1μA for the optional reference. The MAX4036/MAX4038 feature a common-mode input voltage range from 0V to VDD - 0.4V at VDD = 1.4V. The MAX4037/MAX4039 feature a 1.232V voltage reference capable of sourcing 100μA and sinking 20μA.

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特性 Features

? Ultra-Low 800nA per Amplifier Supply Current

? Ultra-Low 1.4V Supply Voltage Operation (1.8V for

??? MAX4037/MAX4039)

? Rail-to-Rail Outputs Drive 5kΩ and 5000pF Load

? 1.232V ±0.5, 120ppm/°C (max) Reference

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? No External Reference Bypass Capacitor

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? No Phase Reversal for Overdriven Inputs

? Low 1.0pA (typ) Input Bias Current

? Low 200μV Input Offset Voltage

? Unity-Gain Stable

? Available in Tiny UCSP, SC70, SOT23, TDFN, and

??? μMAX Packages

? Available in -40°C to +125°C Temperature Range

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Applications

??? Battery-Powered/Solar-Powered Systems

??? Portable Medical Instrumentation

??? Pagers and Cell Phones

??? Micropower Thermostats and Potentiostats

??? Electrometer Amplifiers

??? Remote Sensor Amplifiers

??? Active Badges

??? pH Meters

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