@inproceedings{f4b371d1d6344ad78ac55f40fa3dd559,
title = "Ultralow-power analog front-end IC design for an implantable cardioverter defibrillator (ICD)",
abstract = "This work proposes novel ultralow-power system and circuit designs and trade-offs on the analog front-end integrated circuit (IC) for an implantable cardioverter defibrillators (ICD). The major front-end analog IC includes pre-amplifier, filters, variable-gain-amplifier (VGA) and analog-to-digital converter (ADC). The pre-amplifier is designed with low-noise bipolar (BJT) transistors; filters are designed with both the switch-capacitor (SC) and the g m-C topology for comparison. The VGA includes a high-pass filter (HPF) and a DC shifter designed with a differential difference amplifier (DDA). A successive-approximation-register (SAR) ADC with a novel digital-to-analog converter (DAC) design is used to digitize signals and to reduce SAR ADC's input capacitance by half. The preliminary SPICE simulation of the entire front-end IC suggests it can effectively filter out undesired T-wave in patients' electrogram (EGM) to enable proper heartbeat detection.",
keywords = "SAR ADC, g -C filter, implantable cardioverter defibrillators (ICD), switch-capacitor filter, ultra-lowpower",
author = "Weibo Hu and Liu, {Yen Ting} and Tam Nguyen and Bosco Dsouza and Lie, {Donald Y.C.}",
year = "2011",
doi = "10.1109/ASICON.2011.6157380",
language = "English",
isbn = "9781612841908",
series = "Proceedings of International Conference on ASIC",
pages = "1018--1021",
booktitle = "Proceedings - 2011 IEEE 9th International Conference on ASIC, ASICON 2011",
note = "2011 IEEE 9th International Conference on ASIC, ASICON 2011 ; Conference date: 25-10-2011 Through 28-10-2011",
}