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This paper proposes some 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 components include low-power pre-amplifier, filters, a variable-gain-amplifier (VGA) and an Analog-to-Digital Converter (ADC). We avoided the use of clock signals in the analog IC...
A phase-locked loop (PLL) with self-calibrated charge pumps (CPs) has been fabricated in a 3-mum low-temperature polysilicon thin-film transistor (LTPS-TFT) technology. A voltage scaler and self-calibrated CPs are used to reduce the static phase error, reference spur, and jitter of an LTPS-TFT PLL. This PLL operates from 5.6 to 10.5 MHz at a supply of 8.4 V. Its area is 18.9 mm2, and it consumes 7...
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