MAX4250

19-1295; Rev 2; 4/98 SOT23, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps General Description The MAX4249–MAX4257 low-noise, low-distortion operational amplifiers offer Rail-to-Rail® outputs and singlesupply operation down to 2.4V. They draw only 400µA of quiescent supply current per amplifier while featuring ultra-low distortion (0.0002% THD), as well as low input voltage noise density (7.9nV/√Hz) and low input current noise density (0.5fA/ √ Hz ). These features make the devices an ideal choice for portable/battery-powered applications that require low distortion and/or low noise. For additional power conservation, the MAX4249/ MAX4251/MAX4253/MAX4256 offer a low-power shutdown mode that reduces supply current to 0.5µA and puts the amplifiers’ outputs into a high-impedance state. The MAX4249–MAX4257’s outputs swing rail-to-rail and their input common-mode voltage range includes ground. The MAX4250–MAX4254 are unity-gain stable; the MAX4249/MAX4255/MAX4256/MAX4257 are internally compensated for gains of 10V/V or greater. The single MAX4250/MAX4255 are available in a space-saving, 5-pin SOT23 package. ____________________________Features o o o o o o o o Low Input Voltage Noise Density: 7.9nV/√Hz Low Input Current Noise Density: 0.5fA/√Hz Low Distortion: 0.0002% THD (1kΩ load) 400µA Quiescent Supply Current per Amplifier Single-Supply Operation from +2.4V to +5.5V Input Common-Mode Voltage Range Includes Ground Outputs Swing within 8mV of Rails with a 10kΩ L...