SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps

The MAX4475-MAX4478/MAX4488/MAX4489 wideband, low-noise, low-distortion operational amplifiers offer rail-to-rail outputs and single-supply operation down to 2.7V. They draw 2.2mA of quiescent supply current per amplifier while featuring ultra-low distortion (0.0002% THD+N), as well as low input voltage-noise density (4.5nV/) and low input current-noise density (0.5fA/). These features make the devices an ideal choice for applications that require low distortion and/or low noise.

For power conservation, the MAX4475/MAX4488 offer a low-power shutdown mode that reduces supply current to 0.01µA and places the amplifiers' outputs into a high-impedance state. These amplifiers have outputs which swing rail-to-rail and their input common-mode voltage range includes ground. The MAX4475-MAX4478 are unity-gain stable with a gain-bandwidth product of 10MHz. The MAX4488/4489 are internally compensated for gains of +5V/V or greater with a gain-bandwidth product of 42MHz. The single MAX4475/MAX4476/MAX4488 are available in space-saving, 6-pin SOT23 and TDFN packages.

Applications

* ADC Buffers * DAC Output Amplifiers * Digital Scales * Low-Noise Microphone/Preamplifiers * Medical Instrumentation * Strain Gauges/Sensor Amplifiers

* Low Input Voltage-Noise Density: 4.5nV/

* Low Input Current-Noise Density: 0.5fA/

* Low Distortion: 0.0002% THD+N (1kΩ load)

* Single-Supply Operation from +2.7V to +5.5V

* Input Common-Mode Voltage Range Includes Ground

* Rail-to-Rail Output Swings with a 1kΩ Load

* 10MHz GBW Product, Unity-Gain Stable (MAX4475-MAX4478)

* 42MHz GBW Product, Stable with AV > +5V/V (MAX4488/MAX4489)

* Excellent DC Characteristics

* VOS = 70µV

* IBIAS = 1pA

* Large-Signal Voltage Gain = 120dB

* Low-Power Shutdown Mode:

* Reduces Supply Current to 0.01µA

* Places Output in High-Impedance State

* Available in Space-Saving SOT23, TDFN, µMAX®, and TSSOP Packages

* AEC-Q100 Qualified, Refer to Ordering Information for the List of /V Parts