General Description

The MAX4400–MAX4403 low-cost, general-purpose op amps offer rail-to-rail outputs, draw only 320µA of quiescent current, and operate from a single +2.5V to +5.5V supply. For additional power conservation, the MAX4401 offers a low-power shutdown mode that reduces supply current to 1µA (max) and puts the amplifier’s output in a high-impedance state. These devices deliver ±1.4mA of output current and are unity-gain stable with a 1MHz gainbandwidth product driving capacitive loads up to 400pF. The MAX4400–MAX4403 are specified to +125°C, making them suitable for use in a variety of harsh environments, such as automotive applications.

Features

♦ Single +2.5V to +5.5V Supply Voltage Range

♦ 320µA Quiescent Current per Amplifier

♦ 1µA (max) Shutdown Mode (MAX4401)

♦ Available in Space-Saving Packages

    5-Pin SC70 (MAX4400)

    6-Pin SC70 (MAX4401)

    8-Pin SOT23/µMAX (MAX4402)

♦ 110dB AVOL with 2kΩ Load

♦ 0.015% THD with 2kΩ Load

♦ Rail-to-Rail Output Voltage Swing

♦ 1.4mA of Sink and Source Load Current

♦ Unity-Gain Stable up to CLOAD = 400pF

♦ Ground-Sensing Inputs

Applications

    Single-Supply, Zero-Crossing Detectors

    Instruments and Terminals

    Portable Communications

    Electronic Ignition Modules

    Infrared Receivers

    Sensor Signal Detection