22-08-2023 дата публикации
Номер: CN116625534A
Принадлежит:
The invention discloses a temperature sensor circuit with an offset adjustment function. The temperature sensor circuit comprises a temperature-sensing nuclear circuit, a 10-bit SAR ADC, a first-stage conversion register, a second-stage output register, an upper and lower limit register, an offset calibration register, an adder and a comparator. The temperature sensing nuclear circuit is used for sensing a voltage value corresponding to the temperature, digital conversion is carried out through a 10-bit SAR ADC, and obtained 10-bit binary digital codes are stored in a first-stage conversion register. Temperature conversion values of the 10-bit binary digital codes and 8-bit digital codes stored in the imbalance calibration register are corrected through an adder, the calibrated 10-bit digital codes are stored in a secondary output register and output outwards, and data in the secondary output register are compared with data in upper and lower limit registers through a comparator; and an ...
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