⚡ 本页包含 AI 生成的分析内容，仅供参考
提出一款用于慢性心力衰竭监测的超低功耗生物阻抗传感器芯片，采用0.5V电源，实现9.26µW功耗和15.28mΩ/√Hz的噪声性能，同时将整体相位误差控制在0.55°以内，解决了传统方案无法同时满足超低功耗和高分辨率需求的问题。
measurement [1] is critical in reducing chronic heart failure (CHF) because the symptoms of deterioration are not recognized by patients, thus preventing timely treatment. Therefore, a wearable/implantable bio-impedance (Bio-Z) sensor is required for ambulatory patients to detect early signs of deterioration for appropriate intervention in proper time. Continuous monitoring requires ultralow-power consumption (<10μW) and it requires the high resolution (<0.1Ω) to detect small impedance variations [2]. Prior Bio-Z sensor ICs [2-4] do not satisfy these requirements simultaneously because the resolution depends inversely on the power consumption. Furthermore, previous Bio-Z sensors have a large phase error that is unable to accurately (<1°) and continuously measure phase due to
Kwantae Kim, Ji-Hoon Kim, Surin Gweon, Jiwon Lee, Minseo Kim,
Yongsu Lee, Soyeon Kim, Hoi-Jun Yoo KAIST, Daejeon, Korea Continuous blood-status monitoring by thoracic impedance or impedance phase