IDT ZMOD4410TVOC和室内空气质量传感器解决方案

IDT公司的ZMOD4410是总挥发性有机物(TVOC)和室内空气质量传感器,包括气体检测元件和CMOS信号调理IC.模块的检测元件基于Si的MEMS结构的加热元件和金属氧化物(MOx)化敏电阻器,而信号调理器控制传感器温度和测量MOx的导电率,它是气体浓度的函数.工作电压1.7V- 3.6V,主要用在室内空气监测,包括家庭,办公室和私人环境健康条件和舒适度,检测有害物质和有害健康条件等.本文介绍了ZMOD4410主要特性,框图,应用电路图,以及包括通信板和传感器板在内的评估板ZMOD4410 EVK主要特性,电路图,材料清单和PCB设计图.
The ZMOD4410 Gas Sensor Module is designed for detecting totalvolatile organic compounds (TVOC) and monitoring indoor airquality (IAQ) in different use cases. It is a 12-pin LGA assembly(3.0 x 3.0 x 0.7 mm) that consists of a gas sense element and a CMOS signal conditioning IC. The module’s sense element consistsof heater element on a Si-based MEMS structure and a metaloxide (MOx) chemiresistor. The signal onditioner controls thesensor temperature and measures the MOx conductivity, which isa function of the gas concentration.
The measurement results can be read via an I2C interface with theuser’s microprocessor, which processes the data to determine theTVOC concentration, IAQ rating, and stimated carbon dioxide(eCO2) level. Alternatively, depending on the operation mode, the ZMOD4410 software can generate a control signal, which cantrigger actions based on odor levels. With its low operating currentconsumption, the ZMOD4410 is an excellent choice for low-voltageand low-power battery applications. Built-in nonvolatile memory (NVM) stores the configuration and provides space for arbitraryuser data.
ZMOD4410主要特性:

 Measurement of total organic compounds (TVOC)concentrations and indoor air quality (IAQ)
 Module algorithm estimates carbon dioxide level (eCO2)
 Algorithm to set a control signal to trigger an external actionbased on IAQ and odor change
 Heater driver and regulation loop for constant heater voltageor constant heater resist...