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Buffering TMP01 Temperature Sensor

2014-11-07 18:37  
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This is a buffer circuit for TMP01 Temperature Sensor. The output of this sensor is a low impedance dc output voltage with a 5 mV/K temperature coefficient. This sensor can be used in multiple control and measurement applications. The buffered VPTAT voltage output can drive 500 μA into 50 pF (maximum). Here is the schematic diagram of the circuit:

Buffering TMP01 Temperature Sensor circuit schematic diagram
To minimize loading that could create dissipation-induced temperature sensing errors and to ensure accuracy, an external amplifier is used in this circuit. The circuit can drive over 10 mA. It still stable under capacitive loads of up to 0.1 μF. [Circuit's schematic diagram source: analog.com]




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