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

Product Details

Key Features

Applications/Uses

Parametric specs for Operational Amplifiers
Unity Gain BW (MHz) (typ) 42
Input IBIAS (nA) (max) 0.15
VOS (µV) (max) 750
VSUPPLY (Total) (V) (min) 2.7
VSUPPLY (Total) (V) (max) 5.5
# Amplifiers 2
Rail to Rail Output Only
Package/Pins SOIC (N)/8
UMAX/8
Budgetary
Price (See Notes)
1.18
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Simplified Block Diagram

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Parameters

Parametric specs for Operational Amplifiers
Unity Gain BW (MHz) (typ) 42
Input IBIAS (nA) (max) 0.15
VOS (µV) (max) 750
VSUPPLY (Total) (V) (min) 2.7
VSUPPLY (Total) (V) (max) 5.5
# Amplifiers 2
Rail to Rail Output Only
Package/Pins SOIC (N)/8
UMAX/8
Budgetary
Price (See Notes)
1.18

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

Applications/Uses

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

Description

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.

Simplified Block Diagram

MAX4475, MAX4476, MAX4477, MAX4478, MAX4488, MAX4489: Typical Operating Circuit MAX4475, MAX4476, MAX4477, MAX4478, MAX4488, MAX4489: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .