The MLX90327 is a family of temperature sensor interfaces, intended for sensing of high temperatures in a harsh automotive environment. Currently two versions of this product exist:

  • MLX90327-000 - Interface for one Pt-RTD sensor:

The MLX90327-000 is the ideal digital interface for a Platinum Resistance Temperature Detector (Pt-RTD) sensor (e.g. Pt100 and Pt1000). Typically this type of sensor is suitable for applications up to 1.000°C.

  • MLX90327-001 - Dual channel interface for two thermocouples or one thermocouple + one Pt-RTD sensor:

The MLX90327-001 conditions and linearizes the thermocouple signal of N- and K-type thermocouples enabling even higher temperatures up to 1.300 °C.

Being smart digital interfaces, both -000 and -001 types are capable of transmitting the temperature value as a SENT or PWM signal. The build-in self test function and integrity diagnostics make them suitable for critical applications.

With their high operating temperature of 150ºC and wide measurement range (up to 1.300ºC) the interfaces are intended for use in new high temperature applications where current standard automotive temperature sensor solutions can no longer offer the required reliability and lifetime.

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Top Features

  • Single Pt sensor input (MLX90327-000)

  • 2x thermocouple input + differential sensing + internal cold junction temperature sensor (MLX90327-001)

  • Single Thermocouple + external cold junction temperature sensor (Pt-RTD) input (MLX90327-001)

  • Extended Operating temperature: -40ºC .. +150ºC operating

  • K, N thermocouples supported (other types on demand)

  • Hot junction temperature range: -40ºC .. +1.300ºC

  • Thermocouple fault detection: broken sensors, short to ground/VDD, insulation check
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Temperature sensor interface - MLX90327

Features and benefits

  • Single Pt sensor input (MLX90327-000)

  • 2x thermocouple input + differential sensing + internal cold junction temperature sensor (MLX90327-001)

  • Single Thermocouple + external cold junction temperature sensor (Pt-RTD) input (MLX90327-001)

  • Extended Operating temperature: -40ºC .. +150ºC operating

  • K, N thermocouples supported (other types on demand)

  • Hot junction temperature range: -40ºC .. +1.300ºC

  • Thermocouple fault detection: broken sensors, short to ground/VDD, insulation check

Practical application

EGR High Temperature Sensor

This emissions reduction solution is able to deal with high temperature levels, sensing up to 1.300°C, that characterize automotive environments.

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Used in these

Industries

  • Automotive - Powertrain
  • Industrial & Robotics

Inspired Engineering

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