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