ENS170A Automotive-Grade Air Quality / Multi-Gas Sensor Array

ENS170A Automotive-Grade Air Quality / Multi-Gas Sensor Array

The ENS170A is an automotive-grade, micro-machined, multi-gas / air quality sensor ASIC with integrated Arm Cortex-M0 CPU. 

Besides detection of reducing and oxidizing gases, it features superior processing power plus LIN-, I2C-, SPI- or PWM-slave interface. Its additional I2C-master renders control of further I2C slave devices, such as actuators or humidity and pressure sensors. In such combo modules the ENS170A can function as main controller, thereby significantly contributing to total BOM cost reduction.

With its multi-gas sensor array the ENS170A is ideally suited for air quality applications, as well as Li-Ion battery condition monitoring and thermal runaway detection. Its small package allows tiniest automotive modules and qualifies for direct board integration in battery management systems and balancers of battery electric vehicles or stationary battery solutions.

Block Drawing ENS170A Automotive-Grade Air Quality / Multi-Gas Sensor Array

ENS170A features and benefits


  • Gas sensor array to detect reducing and oxidizing gases, including volatile organic compounds
  • Built-in Arm Cortex-M0 controller with 32k flash memory
  • LIN, I2C, SPI, or PWM slave interface including interrupt pin
  • I2C master interface
  • Customer-specific firmware


  • Enabling tiniest automotive air quality & gas detection designs
  • No additional host controller required
  • Significantly reduced total BOM costs
  • Control of further I2C devices at no additional cost
  • Flexible, custom-designs
  • Tape & reel, reflow solderable

Product properties

  • Automotive grade device AEC-Q100 Level 2 / MSL 1
  • Voltage range 3.0 - 3.6V
  • Standby current 150μA
  • MIS package 3.5 x 3.5 x 1.0mm3


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