← 返回 JSSC 论文列表JSSC 2011第5期Analog Circuits0.18μm
A Biomedical Sensor Interface With a sinc Filter and Interference Cancellation
一种用于生物医学应用的紧凑型低功耗数字辅助传感器接口，采用过采样和混合信号反馈技术。
0.18μm CMOS, 1.5V, 255nW-2.5μW
生物医学传感器抗混叠干扰消除低功耗混合信号反馈
▸利用过采样和混合信号反馈减少系统面积和功耗
▸采用具有sinc频率响应的电荷采样滤波器实现抗混叠
▸混合信号反馈环路创建可编程陷波以消除干扰
Abstract
dent Member , IEEE, Anantha P . Chandrakasan, Fellow, IEEE,
and Joel L. Dawson , Member , IEEE
Abstract—A compact, low-power, digitally-assisted sensor inter-
face for biomedical applications is presented. It exploits oversam-
pling and mixed-signal feedback to reduce system area and power,
while making the system more robust to interferers. Antialiasing
is achieved using a charge-sampling filter with a sinc frequency
response and programmable gain. A mixed-signal feedback loop
creates a sharp, p