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Hall 5, Booth 414
30.05. - 01.06.2017

 

Contact:

Germany / General
André Huntrieser
✆: +49 (0) 2129 - 376-202
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Field Applications Engineer
Günter Fuchs
✆: +49 (0) 2129 376-200
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Tech Support
Raphael Balke
✆: +49 (0) 2129 376-200
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Austria / Switzerland
Karl Eder
✆: +43 (0) 7448 - 21643-11
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MLX90320

 

 

The MLX90320 covers the most typical resistive type of Wheatstone bridge applications for use in an automotive environment. The MLX90320 can be used with almost any type of resistive bridge sensor without the need of any additional signal conditioning.
It is a monolithic silicon analog sensor interface that converts small changes in resistors, configured in a full Wheatstone bridge on a sensing element, to large output voltage variations. The signal conditioning includes gain adjustment, offset control and second order temperature compensation in order to accommodate variations of the different resistive sensing elements.
The differential input signal is offset compensated and amplified to achieve the desired output voltage. With a coarse gain calibration the MLX90320 can easily accommodate sensor output spans in the 1.8mV/V to 63mV/V range to achieve 4 V output span.
Compensation values are stored in EEPROM and can be reprogrammed with an interface circuit and provided software. The MLX90320 is programmed with a single wire serial interface through the output pin.
By intercepting various fault modes the MLX90320 is able to inform about the reliability of its analog output signal.

 

Features Application examples
  • Suited cost optimized sensors
    • Gain and offset correction by programmable coefficients
  • Higher order temperature compensation
    • provided for both gain and offset
  • Second order gain and offset correction by programmable coefficient
  • External or internal temperature sensor for compensation of temperature errors
  • Over-voltage protection
  • Fault detection and programmable clamping levels
  • Ratio-metric output from 0 to 5V
  • Single Pin Digital Programming
  • Fully analog signal path
  • Operating voltage from 4.5V to 5.5V
  • Wide temperature range from -40°C to 150°C (Code L)
  • SSOP14 package
  • Automotive applications
  • Accelerometers
  • Linear position sensors
  • Pressure transducers
  • Temperature sensors assemblies
  • Any bridge type sensor