MAX4477AUA+

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/√Hz) and low input current-noise density (0.5fA/√Hz). 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
• Low-Noise Microphone/Preamplifiers
• Digital Scales
• Strain Gauges/Sensor Amplifiers
• Medical Instrumentation Automotive

Key features

• Low Input Voltage-Noise Density: 4.5nV/√Hz
• Low Input Current-Noise Density: 0.5fA/√Hz
• 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