Temperature sensor

摘要

A temperature sensor includes a constant current source and a transistor stack connected to the constant current source. The transistor stack includes a first transistor having a base connected to the constant current source and a collector coupled to a supply voltage. The collector of the first transistor is electrically isolated from the base of the first transistor. The transistor stack includes a second transistor connected to the first transistor. The second transistor has a collector connected to an emitter of the first transistor and has a base connected to the collector of the second transistor. The transistor stack includes an output node disposed between the constant current source and the base of the first transistor. A voltage of the output node is indicative of a temperature.

主权项

1. A temperature sensor, comprising:
a constant current source; a transistor stack connected to the constant current source, the transistor stack including:
a first transistor having a base connected to the constant current source and a collector coupled to a supply voltage, the collector of the first transistor being electrically isolated from the base of the first transistor, anda second transistor connected to the first transistor, the second transistor having a collector connected to an emitter of the first transistor and having a base connected to the collector of the second transistor; and an output node disposed between the constant current source and the base of the first transistor, wherein a voltage of the output node indicates a temperature of the transistor stack.