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MAX4475, MAX4476, MAX4477, MAX4478, MAX4488, MAX4489
SOT23, Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amps


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Description
FULL DATA SHEET (PDF, 688kB)
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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.

Key Features   Applications/Uses
  • 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

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

    Key Specifications:   Operational Amplifiers
    Part Number Amps Per Pkg. Rail to Rail Min. Stable Closed Loop Gain (V/V) Min. Total Supply (V) Max. Total Supply (V) Typ. Supply Current per Amp. (µA) Max. VOS (µV) Typ. CMRR @ DC (dB) Typ PSRR @ DC (dB) Max. Input IBIAS (nA) Typ. Unity Gain BW (MHz) Typ. Slew Rate (V/µs) Input Voltage Noise Density (nV/√Hz) Input Current Noise Density (pA/√Hz) Low Power Shutdown Operating Temp. Range (°C)
    MAX4475  1 Output Only 1 2.7 5.5 2500 750 115 120 0.15 10 3 4.5 0.0005 Yes -40 to +125
    MAX4476  1 1 10 3 No
    MAX4477  2 1 10 3 No
    MAX4478  4 1 10 3 No
    MAX4488  1 5 42 10 Yes
    MAX4489  2 5 42 10 No
    See All Operational Amplifiers (141)

    Diagram
    MAX4475, MAX4476, MAX4477, MAX4478, MAX4488, MAX4489: Typical Operating Circuit
    Typical Operating Circuit

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    Document Ref.: 19-2137; Rev 3; 2005-12-12
    This page last modified: 2008-03-14




             


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