| 摘要 |
Methods and systems for producing a digital temperature reading are provided. In an embodiment, one or more current sources and one or more switches are used to selectively provide a first amount of current (I1) and a second amount of current (I2) to the emitter of a transistor (Q1), during different time slots of a time period, to thereby produce a first base-emitter voltage (Vbe1) and a second base-emitter voltage (Vbe2), where I1=I2*M, and M is a known constant. An analog-to-digital converter (ADC) digitizes analog signals representative of the magnitudes Vbe1 and Vbe2. A difference is determined between the magnitudes of Vbe1 and Vbe2. A digital calculator produces a digital temperature reading (DTR) based on the difference between the magnitudes of Vbe1 and Vbe2. |
