⚡ 本页包含 AI 生成的分析内容，仅供参考
提出一种采用正交频率斩波技术的2通道电容耦合仪表放大器(CCIA)，实现了-83.2dB的低串扰和0.061mm²的小面积，解决了多通道传感应用中串扰与面积效率的权衡问题。
Area-efficient low-noise instrumentation amplifiers (IAs) are required in various multi-channel sensing and monitoring applications. These IAs must be designed to achieve low noise and low power, good noise efficiency factor (NEF), good gain matching and low crosstalk among multiple channels [1]. For a continuous sensor array application, each sensor unit is conventionally connected to an individual amplifier for analog signal processing. This configuration consumes large chip area and high power. Furthermore, the quality of gain matching among channels is limited due to the independence of each channel. In [2-3], several multi-channel schemes addressing some of these difficulties are reported. This paper demonstrates a prototype capacitively-coupled IA (CCIA) that adopts an orthogonal frequency chopping (OFC) technique to realize a continuous two-channel CCIA with only one active amplifier, thus saving chip
Yi-Lin Tsai, Feng-Wen Lee, Tzu-Ying Chen, Tsung-Hsien Lin
National Taiwan University, Taipei, Taiwan