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3V/5V Low-Power, Low Input-Bias, CMOS, Rail-to-Rail I/O Op Amps

Delivers Low-Power, Cost-Effective Solutions Where Low Noise and Low IBIAS Are Critical

Product Details

Key Features

Parametric specs for Operational Amplifiers
Unity Gain BW (MHz) (typ) 1.5
Input IBIAS (nA) (max) 0.00080
VOS (µV) (max) 2200
VSUPPLY (Total) (V) (min) 2.1
VSUPPLY (Total) (V) (max) 5.5
# Amplifiers 1
Rail to Rail Input/Output
Package/Pins SC70/6
Budgetary
Price (See Notes)
0.53
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Simplified Block Diagram

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Parameters

Parametric specs for Operational Amplifiers
Unity Gain BW (MHz) (typ) 1.5
Input IBIAS (nA) (max) 0.00080
VOS (µV) (max) 2200
VSUPPLY (Total) (V) (min) 2.1
VSUPPLY (Total) (V) (max) 5.5
# Amplifiers 1
Rail to Rail Input/Output
Package/Pins SC70/6
Budgetary
Price (See Notes)
0.53

Key Features

  • Ideal for Precision Transimpedance Amplifier Applications
    • Ultra-Low 0.1pA Bias Current
    • Wide 1.5MHz Bandwidth
    • Low Input Current-Noise Density: 0.9fA/√Hz
  • Extend Battery Life
    • Single-Supply Operation VDD = 2.1V to 5.5V
    • Low 36µA Quiescent Current
    • 1µA Quiescent Current in Shutdown
  • Save Board Space
    • 6- and 8-Pin SC70 and 10-Pin UTQFN Packages

Applications/Uses

  • Battery-Powered Devices
  • Piezoelectric Transducer Amplifiers
  • Portable Medical Instruments
  • Smoke Detectors
  • Tablets
  • Transimpedance Amplifiers

Description

The MAX9636/MAX9637/MAX9638 are single-supply, CMOS input op amps featuring wide bandwidth at low quiescent current, making them suitable for a broad range of battery-powered applications such as portable medical instruments, portable media players, and smoke detectors. A combination of extremely low input bias currents, low input current noise and low input voltage noise allows interface to high-impedance sources such as photodiode and piezoelectric sensors.

The ICs feature a maximized ratio of gain bandwidth (GBW) to supply current. The devices operate from a single 2.1V to 5.5V supply at a typical quiescent supply current of 36µA. For additional power conservation, the MAX9636 and MAX9638 offer a low-power shutdown mode that reduces supply current to 1µA and places the amplifiers' outputs into a high-impedance state.

The ICs are specified over the automotive operating temperature range (-40°C to +125°C). The single is offered in a space-saving, 6-pin SC70 package, while the dual is offered in tiny, 8-pin SC70 and 10-pin UTQFN packages.

Simplified Block Diagram

MAX9636, MAX9637, MAX9638: Block Diagram MAX9636, MAX9637, MAX9638: Block Diagram 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 .