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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 Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C) Price**
    MAX4475  1 Output Only 1 2.7 5.5 2500 750 115 120 0.15 10 3 4.5 0.0005 Yes SOIC/8
    SOT-23/6
    THIN QFN (Dual)/6
    uMAX/8
    9 -40 to +125 $0.65 @ 1k
    MAX4476  1 1 10 3 No SOT-23/6
    THIN QFN (Dual)/6
    9 $0.65 @ 1k
    MAX4477  2 1 10 3 No SOIC/8
    uMAX/8
    16 $0.98 @ 1k
    MAX4478  4 1 10 3 No SOIC/14
    TSSOP/14
    33 $1.45 @ 1k
    MAX4488  1 5 42 10 Yes SOIC/8
    SOT-23/6
    THIN QFN (Dual)/6
    uMAX/8
    9 $0.65 @ 1k
    MAX4489  2 5 42 10 No SOIC/8
    uMAX/8
    16 $0.98 @ 1k
    See All Operational Amplifiers (141)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    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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