CMOS switched-opamp

0.8-V 420nW CMOS switched-opamp switched-capacitor pacemaker front-end with a new continuous-time CMFB

FREE-DOWNLOAD M Daliri… – Electronics, Circuits and …
Abstract—A low-voltage low-power pacemaker Front-End for detecting QRS complex is presented
in this paper. The circuit includes a switched-opamp switched-capacitor (SO-SC) preamplifier
with a gain of 40db, a fourth-order Butterworth SO-SC filter with a sampling frequency of