A variable bandwidth amplifier for a dual-mode low-power ΔΣ modulator in cardiac pacemaker system

Abstract

This paper presents the design and implementation of a variable bandwidth amplifier intended for ultra-low-power biomedical implants in 65nm CMOS, providing tunable gain-bandwidth in three modes: 0.9 MHz, 1.7 MHz, and 2.3 MHz with consistent 56 dB DC gain. The amplifier consumes 180nW static power in the lowest bandwidth mode, and consumes 315 nW static… (More)
DOI: 10.1109/ISCAS.2013.6572242

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