High accuracy, compact on-chip temperature sensor

The invention discloses a high accuracy, compact on-chip temperature sensor. Embodiments of a temperature sensing apparatus are disclosed. The apparatus may include a voltage generator and circuitry. The voltage generator may generate a first voltage level and a second voltage level dependent on an operating temperature. In response to a given change in the operating temperature, the first and second voltage levels may change, with the second voltage level changing by a different amount than the first voltage level. The voltage generator may generate a third voltage level. The circuitry may measure the first voltage level, the second voltage level, and the third voltage level, and may calculate the operating temperature dependent on a ratio of a difference between the first voltage level and the second voltage level and the third voltage level. 公开了温度感测装置的实施例。该装置可以包括电压发生器和电路系统。电压发生器可以取决于工作温度生成第电压电平和第二电压电平。响应于工作温度的给定改变，第电压电平和第二电压电平可以改变，其中第二电压电平改变与第电压电平不同的量。电压发生器可以生成第三电压电平。电路系统可以测量第电压电平、第二电压电平和第三电压电平，并且可以取决于第电压电