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Nitrogen Oxide Conditioning Chip MY9706
Nitrogen Oxide Conditioning Chip

Nitrogen Oxide Conditioning Chip - MY9706

Operating Temperature: -55~125℃
NOx Concentration Range: 0ppm~3000ppm
NOx Concentration Resolution: 0.1ppm, 14-bit ADC output
Operating Voltage: 5V~35V
Average Power Consumption: 16mA
ESD:HBM±8kV,CDM±2kV
Communication Protocol: SPI

Model: MY9706

Product Introduction

The nitrogen oxide sensor consists of a sensing probe and an electronic control acquisition unit. It can measure the concentration of nitrogen oxides (a mixture of NO, NO2, and other nitrogen oxides) and nitrogen concentration in diesel exhaust. It is widely used in SCR (Selective Catalytic Reduction) systems of diesel engines for closed-loop NOx control, as well as in on-board diagnostics for gasoline and diesel engines.


The nitrogen oxide conditioning chip MY9706 features high integration, requiring fewer external components, achieving 14-bit resolution, short stabilization time, and high reliability. It has passed automotive-grade ESD protection certifications of HBM ±8000V and CDM ±2000V, and has passed high-temperature long-duration aging tests.

MY9706 is based on a new CMOS mixed-signal process, integrating functions such as measurement driving, amplification of multi-electrode voltage, current, and temperature signals from the sensing probe, analog-to-digital conversion, and digital compensation processing. It communicates with the vehicle MCU via the SPI bus and is used in various nitrogen oxide treatment equipment and monitoring sensor systems.



1. Features of Nitrogen Oxide Conditioning Chip - MY9706:

Operating Temperature: -55~125℃
NOx Concentration Range: 0ppm~3000ppm
NOx Concentration Resolution: 0.1ppm, 14-bit ADC output


Measurement Accuracy:


Operating Voltage: 5V~35V
Average Power Consumption: 16mA
ESD:HBM±8kV,CDM±2kV
Communication Protocol: SPI




2. Applications of Nitrogen Oxide Conditioning Chip - MY9706:


Diesel engine exhaust SCR systems (China IV, V, VI emission standards)
Gasoline engine exhaust treatment systems


Power plant desulfurization and denitrification detection and control systems


NOx sensor ceramic chip monitoring systems


Other NOx testing platforms