⚡ 本页包含 AI 生成的分析内容,仅供参考
该论文提出了一种集成的电压和电流参考电路,通过电流镜无缝过渡技术实现子范围补偿,在-40至125°C范围内分别达到5.7ppm/°C和9.1ppm/°C的温度系数,解决了高精度仪表和传感器读出系统中参考源的温度漂移问题。
Abstract This work implements an integrated voltage and current reference circuit, which has low temperature drift. By ensuring the reuse of the main circuit, we propose a current-mirrorbased seamless transition technique, which can be used to achieve sub-ranging compensation. Eventually, this work realizes 3rd-order compensation in two domains simultaneously, resulting in temperature coefficients of 5.7ppm/°C and 9.1 ppm/°C for voltage and current references, respectively. The accuracy of high-precision meters, sensor readout, and control systems relies heavily on the stability of their voltage and current references (VR and CR). To accommodate broad scenarios while preserving a small form factor, integrating VR and CR with high temperature-insensitivity in a compact area is desirable. The VR or CR is typically derived from its accurate VR or CR counterparts via a resistor [1-3]. Despite being area-efficient,
Lele Fang, Yan Zhu, Rui P. Martins, Chi-Hang Chan
University of Macau, Macau, China