⚡ 本页包含 AI 生成的分析内容，仅供参考
本文提出了一种用于电化学气体检测的阻抗谱SoC，实现了0.28mΩ的灵敏度和105dB的动态范围。该SoC集成了高精度电位器电路和阻抗测量功能，解决了电化学气体传感器寿命短和检测精度低的问题。
Colin Lyden3, Yincai Liu1, Junbiao Ding4, Dennis Dempsey2, Leicheng Chen1, Donal Bourke3, Shurong Gu1, Jun Gao1, Lizhu Lu1, Li Wang1, Xuemin Li1, Hongxing Li5, Chao Chu1, Ling Yang1 Analog Devices, Beijing, China; 2Analog Devices, Limerick, Ireland Analog Devices, Cork, Ireland; 4Analog Devices, Shanghai, China 5 Analog Devices, Wilmington, MA 1 3 An electrochemical (EC) gas sensor is a 3+ terminal electrochemical device which, when biased correctly with a potentiostat circuit, behaves as a current source whose output is proportional to the target gas concentration. The short lifetime of these sensors has become a key functional safety issue for hazardous gas detection modules. In order to predict the failure of EC gas sensors, a high precision and wide bandwidth EC impedance measurement is required [1]. For example, an electrochemical impedance spectroscopy (EIS) instrument is often used in the laboratory for failure rate analysis and there is a trend towards
Guangyang Qu1, Hanqing Wang1, Yimiao Zhao1, John O'Donnell2,