MAX31855TASA+

MAXIM INTEGRATED PRODUCTS  MAX31855TASA+  温度传感器芯片, 数字式, ± 2°C, -250 °C, 400 °C, NSOIC, 8 引脚

The is a cold junction compensated thermocouple to digital converter in 8 pin NSOIC package. This is a "T" type sophisticated thermocouple to digital converter with a built-in 14bit analogue to digital converter ADC also contains cold junction compensation sensing and correction, a digital controller, an SPI compatible interface read only and associated control logic. The function of the thermocouple is to sense a difference in temperature between two ends of the thermocouple wires and it has a signal-conditioning hardware to convert the thermocouple"s signal into a voltage compatible with the input channels of the ADC. The device is designed to work in conjunction with an external microcontroller µC in thermostatic, process-control or monitoring applications.

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Supply voltage range is 3V to 3.6V

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Operating temperature range from -40°C to +125°C

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Measured temperature range of -250°C to +400°C

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Integration reduces design time and lowers system cost

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Detects thermocouple shorts to GND or VCC

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Detects open thermocouple

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Thermocouple temperature data resolution is 0.25°C

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Temperature gain & offset error 52.18µV/°C nominal sensitivity is ±2°C at TA = -20°C to +85°C