General Description
The MAX4162/MAX4163/MAX4164 are single/dual/quad, micropower operational amplifiers that combine an exceptional bandwidth to power consumption ratio with true rail-to-rail inputs and outputs. They consume a mere 25μA quiescent current per amplifier, yet achieve 200kHz gain-bandwidth product and are unity-gain stable while driving any capacitive load. The MAX4162/MAX4163/MAX4164 operate from either a single supply (2.5V to 10V) or dual supplies (±1.25V to ±5V), with an input common-mode voltage range that extends 250mV beyond either supply rail. These amplifiers use a proprietary architecture to achieve a very high input common-mode rejection ratio without the midswing nonlinearities present in other rail-to-rail op amps. This architecture also maintains high open-loop gain and output swing while driving substantial loads.

FEATUREs
● UCSP Package (MAX4163)
● 1.0pA Typical Input Bias Current
● Single-Supply Operation from 2.5V to 10V
● Input Common-Mode Voltage Range Extends 250mV Beyond Either Supply Rail
● Rail-to-Rail Output Swing
● 200kHz Gain-Bandwidth Product
● 25μA Quiescent Current per Amplifier
● Excellent CMRR, PSRR, and Gain Linearity
● No Phase Reversal for Overdriven Inputs
● Unity-Gain Stable
● Stable with Any Capacitive Load
● Internally Short-Circuit Protected to Either Rail

APPLICATIONs
● Battery-Powered Devices
● pH Probes
● Portable Equipment
● Low-Power, Low-Voltage Equipment
● Medical Instruments
● Ionization Detectors
● Cellular Phones