This work suggests an all-digital temperature sensor with a high sampling rate that is based on a time-to-digital converter (TDC). Two on-chip voltage-controlled oscillators (VCOs) are used in the design of the sensor core, which senses temperatures between $-40^{\circ }$C and 200${}^{\circ }$C. For digital code conversion, the outputs of the VCO are fed into two asynchronous counters. In both low- and high- resolution modes, the error following two-point calibration is observed between $-1.08^{\circ }$C and $+1.06^{\circ }$C. The sensor’s ability to function in both high- and low-resolution modes based on conversion time is an important feature. At a sampling frequency of 0.19$$MHz, the maximum resolution achieved is 0.18${}^{\circ }$C. Additionally, the sensor has control logic built in to turn off the sensing as soon as the conversion is complete. At 90-nm process, 1.1$$V supply voltage and 27${}^{\circ }$C, the proposed sensor occupies $0.044{\mathrm{\text{mm}}}^2$ and consumes $817.5\mu \mathrm{\text{W}}$.

这项工作提出了一种基于时间数字转换器 (TDC) 的高采样率全数字温度传感器。传感器核心的设计中使用了两个片上压控振荡器 (VCO)，可感应之间的温度$-40^{\circ }$C和200${}^{\circ }$C. 对于数字代码转换，VCO 的输出被馈送到两个异步计数器。在低分辨率和高分辨率模式下，在两点校准之间观察到误差$-1。08^{\circ }$C 和$+1。06^{\circ }$C. 传感器能够根据转换时间在高分辨率和低分辨率模式下工作，这是一个重要特性。采样频率为 0.19$$MHz，最大分辨率达到0.18${}^{\circ }$C. 此外，传感器内置控制逻辑，可在转换完成后立即关闭传感。在 90 纳米工艺下，1.1$$V电源电压和27${}^{\circ }$C、建议传感器占用$0。044{\mathrm{\text{毫米}}}^2$并消耗$817。5\mu \mathrm{\text{瓦}}$。