TMP37GT9-REEL

Resolution:	20mV/°C
Base Part Number:	TMP37
Supplier Device Package:	TO-92-3
Package / Case:	TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 150°C
Test Condition:	25°C (5°C ~ 100°C)
Accuracy - Highest (Lowest):	±3°C (±4°C)
Features:	Shutdown Mode
Series:	--
Voltage - Supply:	2.7 V ~ 5.5 V
Output Type:	Analog Voltage
Sensing Temperature - Remote:	--
Sensing Temperature - Local:	5°C ~ 100°C
Sensor Type:	Analog, Local
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Temperature Sensors - Analog and Digital Output

Temperature sensors are a critical part of many processes and machines, and come in a variety of styles, with different outputs, depending on their type. The TMP37GT9-REEL thermistor is one such sensor, and consists of a temperature-sensitive resistor, an analog to digital converter, and an epoxy-coated package. In this article, we will look at the application fields for the TMP37GT9-REEL, and explain its working principle.The TMP37GT9-REEL is a precision-temperature measurement circuit that is often used for applications such as air conditioning, automotive and HVAC systems, temperature monitoring of semiconductor processes and operation of printers and other equipment. It outputs either an analog or digital signal, and can be used as a stand-alone device, or in combination with external components.Its designed to provide a linear relationship between temperature and output, and is highly accurate over a widerange of temperatures. The output is typically situated between 0 and 2.2V for temperatures between -40°C to +125°C, and scales linearly with each additional degree. It features programmable temperature limits, and also has auxiliary functions such as thermal shut down, thermal limit, and alarm detect.In terms of its working principle, the TMP37GT9-REEL consists of a highly sensitive NTC thermistor, which is connected to an on-board voltage-to-resistance conversion circuit. This circuit is integrated into the sensor, and is designed to accurately measure the change in resistance of the thermistor caused by precise changes in temperature. The circuit is ratio-metric, meaning it dynamically buffers the NTC thermistor from environmental noise and changes in supply voltage to a small tolerance, giving a very accurate temperature conversion.The TMP37GT9-REEL outputs either an analog or digital signal, depending on the application. When an analog output is needed, an external resistor is necessary to configure the device to the desired output. For digital outputs, the device features open drain outputs, meaning the device is always in a low state, and pulls the output pin to ground when the temperature reaches the set thresholds.In summary, the TMP37GT9-REEL thermistor is a versatile and cost-effective temperature measurement device that is suitable for a variety of applications. It consists of a linear temperature-sensitive resistor, a precision analog to digital converter, and an epoxy-coated package. Its designed to provide accurate temperature measurements and to offer either analog or digital outputs, depending on the application. It features programmable temperature limits, making it a great choice for temperature-critical applications.

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