MAX9945

PRODUCTION

38V, Low-Noise, MOS-Input, Low-Power Op Amp

Great Combination of Low Power and Low Noise in a Small Package

Data Sheet (Rev. 1) Product Selection Table
Part Models
4
1ku List Price
Starting From $1.10
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Part Details

  • +4.75V to +38V Single-Supply Voltage Range
  • ±2.4V to ±19V Dual-Supply Voltage Range
  • Rail-to-Rail Output Voltage Swing
  • 400µA Low Quiescent Current
  • 50fA Low Input Bias Current
  • 1fA/ Low Input Current Noise
  • 15nV/ Low Noise
  • 3MHz Unity-Gain Bandwidth
  • Wide Temperature Range from -40°C to +125°C
  • Available in Space-Saving, 6-Pin TDFN Package (3mm x 3mm)
MAX9945
38V, Low-Noise, MOS-Input, Low-Power Op Amp
MAX9945: Typical Operating Circuit
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Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 3

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Evaluation Kits

MAX9945EVKIT

Evaluation Kit for the MAX9945

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Features and Benefits

  • Accommodates Multiple Op-Amp Configurations
  • Wide Input Supply Range
  • 0805 Components
  • Lead(Pb)-Free and RoHS Compliant
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX9945 evaluation kit (EV kit) provides a proven design to evaluate the MAX9945 low-noise, MOS-input, low-power op amp in an 8-pin µMAX® package. Various test points are provided for easy evaluation. The EV kit circuit is preconfigured as a transimpedance amplifier (TIA), but can easily be adapted to act as a noninverting, inverting, or differential amplifier by changing a few components. MOS-input bias currents, low input-voltage noise, and rail-to-rail output stage make this device ideal for photodiode transimpedance amplifiers, piezo buffers, and audio line out applications. The components have pads that accommodate 0805 packages, making them easy to solder and replace. The MAX9945 EV kit PCB comes with a MAX9945AUA+ installed. Note that the MAX9945 is also available in a 3mm x 3mm TDFN package.

Applications

  • Active Filters and Signal Processing
  • Chemical Sensor Interface
  • High-Performance Audio Line Out
  • Industrial Sensors and Instrumentation
  • Medical Pulse Oximetry
  • Photodiode Sensor Interface
MAX9945EVKIT
Evaluation Kit for the MAX9945

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2 Years Ago
RE: MAX9945
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