IEEE Trans Biomed Circuits Syst. 2018 Feb;12(1):211-221. doi: 10.1109/TBCAS.2017.2776528.
This paper presents an implantable bio-impedance measurement system for cardiac pacemakers. The fully integrated system features a low power analog front-end and pulse width modulated output. The bio-impedance readout benefits from voltage to time conversion to achieve a very low power consumption for wirelessly transmitting the data outside the body. The proposed IC is fabricated in a 0.18 μm CMOS process and is capable of measuring the bio-impedance at 2 kHz over a wide dynamic range from to with accuracy and maximum current injection while consuming just from a 1 V supply.
本文提出了一种用于心脏起搏器的植入式生物阻抗测量系统。该完全集成系统采用低功耗模拟前端和脉宽调制输出。生物阻抗读取受益于电压到时间的转换，以实现非常低的功耗，用于无线传输体外数据。所提出的 IC 采用 0.18μm CMOS 工艺制造，能够在 2 kHz 的频率下测量宽动态范围的生物阻抗，精度为，最大电流注入为，同时仅消耗 1 V 的电源。
