The MAX4249MAX4257 low-noise, low-distortion oper-ational amplifiers offer Rail-to-Rail® outputs and single-supply 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 shut-down mode that reduces supply current to 0.5µA andputs the amplifiers' outputs into a high-impedance state.The MAX4249MAX4257's outputs swing rail-to-rail andtheir input common-mode voltage range includesground. The MAX4250MAX4254 are unity-gain stable;the MAX4249/MAX4255/MAX4256/MAX4257 are internal-ly compensated for gains of 10V/V or greater. The singleMAX4250/MAX4255 are available in a space-saving, 5-pin SOT23 package.
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Portable/Battery-Powered EquipmentMedical InstrumentationADC Buffers Digital ScalesStrain GaugesSensor AmplifiersPortable Communications Devices
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. Low Input Voltage Noise Density: 7.9nV/Hz. Low Input Current Noise Density: 0.5fA/Hz. Low Distortion: 0.0002% THD (1kΩload). 400µA Quiescent Supply Current per Amplifier. Single-Supply Operation from +2.4V to +5.5V. Input Common-Mode Voltage Range IncludesGround. Outputs Swing within 8mV of Rails with a 10kΩLoad. 3MHz GBW Product, Unity-Gain Stable(MAX4250MAX4254)22MHz GBW Product, Stable with AV10V/V(MAX4249/MAX4255/MAX4256/MAX4257). Excellent DC Characteristics:VOS= 70µVIBIAS= 1pALarge-Signal Voltage Gain = 116dB.Low-Power Shutdown Mode:Reduces Supply Current to 0.5µAPlaces Outputs in a High-Impedance State. 400pF Capacitive-Load Handling Capability. Available in Space-Saving SOT23 and µMAXPackages
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Power-Supply Voltage (VDDto VSS)....................+6.0V to -0.3V
Analog Input Voltage (IN_+, IN_-)..(VDD+ 0.3V) to (VSS- 0.3V)
SHDNInput................................................+6.0V to (VSS- 0.3V)
Output Short-Circuit Duration to Either Supply.......Continuous
Continuous Power Dissipation (TA= +70°C)
5-Pin SOT23 (derate 7.1mW/°C above +70°C)......... 571mW
8-Pin µMAX (derate 4.10mW/°C above +70°C)..........330mW
8-Pin SO (derate 5.88mW/°C above +70°C)............. 471mW
10-Pin µMAX (derate 5.6mW/°C above +70°C)..........444mW
14-Pin SO (derate 8.33mW/°C above +70°C)............667mW
Operating Temperature Range......................-40°C to +85°C
Junction Temperature..................................................+150°C
Storage Temperature Range.......................-65°C to +160°C
Lead Temperature (soldering, 10sec).........................+300°C
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