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An Embedded 65 nm CMOS Remote Temperature Sensor With Digital Beta Correction and Series Resistance Cancellation Achieving an Inaccuracy of 0.4 C( 3 )F r o m 40 C to 130 C
65nm CMOS嵌入式远程温度传感器，采用数字β补偿技术，适应多种BJT。
65nm CMOS, 温度范围-40°C至130°C, 可处理500Ω以上串联电阻, β值低至1.5
远程温度传感器数字β补偿CMOS嵌入式BJT
▸创新点1：数字β补偿技术（方法创新） - 该技术通过数字校准方式动态补偿双极型晶体管（BJT）的β值变化，解决了传统模拟补偿电路难以适应β值低至1.5的极端情况的问题，显著提升了传感器对多样化BJT的兼容性。
▸创新点2：串联电阻消除技术（电路创新） - 采用创新的前端电路设计，可自动抵消远程BJT连接线上高达500Ω的串联电阻引入的误差，突破了传统传感器对布线电阻敏感的局限性。
▸创新点3：全局偏移和噪声耦合消除（系统创新） - 通过独特的参考电压共享架构和噪声抑制方案，在65nm CMOS工艺下实现了与微控制器核的集成，同时保持±1℃的测温精度（-40℃至130℃范围）。
▸创新点4：SoC集成兼容性设计（系统创新） - 传感器与SoC中其他数据转换器共享外部基准电压源，减少了芯片面积和功耗开销，实测数据表明其在16个样品和4种BJT条件下均保持稳定性能。
Abstract
An embedded remote junction temperature sensor ( R T S )w i t ha ni n a c c u r a c yo f C for temperature range from 40 C to 130 C is presented. Using a digital beta compen- sation technique, series resista nce cancellation and global offset and noise coupling cancellation, t he sensor is capable of handling a variety of remote BJTs which are either directly mounted on a P C Bo re m b e d d e di nS o C s .I tc a naccommodate a series resistance of more than 500 and beta values down to around 1.5. The RTS has been integrated with a microcontroller core implemented in a 65 nm digital CMOS process. It shares an external reference voltage source with other data converters on the SoC. Measured results from a set of 16 samples and four BJTs are presented.