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

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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.
MAX4475, MAX4476, MAX4477, MAX4478, MAX4488, MAX4489: Typical Operating Circuit MAX4475, MAX4476, MAX4477, MAX4478, MAX4488, MAX4489: Typical Operating Circuit Enlarge+

Key Features

  • 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


  • ADC Buffers
  • DAC Output Amplifiers
  • Digital Scales
  • Low-Noise Microphone/Preamplifiers
  • Medical Instrumentation
  • Strain Gauges/Sensor Amplifiers
Part NumberAmps.Rail to RailVSUPPLY (Total)
ICC per Amp.
Low Input Bias CMOS InputsInput IBIAS
Unity Gain BW
Slew Rate
minmaxtypmaxtyptypmaxtyptyp<See Notes
MAX4475 1Output Only2.75.52500750115120Yes0.151034.5
SOIC (N)/8
$1.16 @1k
MAX4476 1103
$1.16 @1k
MAX4477 2103
SOIC (N)/8
$1.25 @1k
MAX4478 4103
SOIC (N)/14
$1.82 @1k
MAX4488 14210
SOIC (N)/8
$0.71 @1k
MAX4489 24210
SOIC (N)/8
$1.18 @1k
See All Operational Amplifiers (174)
Pricing 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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX4475EVKIT: Evaluation Kit for the MAX4475/MAX4488

Technical Documents

App Note 4301 The Zero-Transistor IC, a New Plateau in IC Design
Tutorial 4294 Differential Gain and Phase—Why Measure It, if You Cannot See It?

Quality and Environmental Data

Product Reliability Reports: MAX4488.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

Tools & Models

  • MAX4488 Orcad Library
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >


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