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1. Description
The MAX4400AUK+T–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.
2. Features
1. Single +2.5V to +5.5V Supply Voltage Range
2. 320µA Quiescent Current per Amplifier
3. 1µA (max) Shutdown Mode (MAX4401)
4. Available in Space-Saving Packages
- 5-Pin SC70 (MAX4400)
- 6-Pin SC70 (MAX4401)
- 8-Pin SOT23/µMAX (MAX4402)
5. 110dB AVOL with 2kΩ Load
6. 0.015% THD with 2kΩ Load
7. Rail-to-Rail Output Voltage Swing
8. 1.4mA of Sink and Source Load Current
9. Unity-Gain Stable up to CLOAD = 400pF
10. Ground-Sensing Inputs
11. AEC-Q100 Qualified (MAX4402AKA/V+ and MAX4402AUA/V+ Only)
3. Applications
1. Single-Supply, Zero-Crossing Detectors
2. Instruments and Terminals
3. Portable Communications
4. Electronic Ignition Modules
5. Infrared Receivers
6. Sensor Signal Detection
7. Automotive
4. Pin Configurations
5. Electrical Characteristics
