CMOS switched-opamp

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

FREE-DOWNLOADM Maymandi Nejad – … on Electronics, Circuits and Systems-ICECS …, 2008
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 .