Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown

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 gain-bandwidth 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.

The MAX4400 single amplifier is available in ultra-small 5-pin SC70 and space-saving 5-pin SOT23 packages. The single MAX4401 includes the shutdown feature and is available in a 6-pin SC70. The MAX4402 is a dual amplifier available in 8-pin SOT23, µMAX®, and SO packages. The MAX4403 quad amplifier is packaged in a 14-pin TSSOP or SO.

* 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

* AEC-Q100 Qualified (MAX4402AKA/V+ and MAX4402AUA/V+ Only)