Offset cancellation of CMOS inverter comparators (CROSBI ID 517021)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Matić, Tomislav ; Švedek, Tomislav ; Raguž, Krešimir
engleski
Offset cancellation of CMOS inverter comparators
Comparators are main building blocks of the Nyquist rate and oversampled PCM ADCs and Sigma-Delta Modulation converters. There are three basic comparator architectures: high gain amplifier, charge balancing or data-sampling, and regenerative or latched comparators. The former is based on cascading of small gain CMOS inverter amplifier(s) (active load, current source or push-pull) and a high-speed latch. Transistor matching of a CMOS push-pull amplifier is subject to variation of the fabrication process and the threshold voltage of the comparator is not at the half of the power supply voltage. That results in the offset voltage. The paper analyzes CMOS inverter gain stages, and the auto-zeroing technique for offset cancellation.
Offset cancellation; CMOS; inverter; comparator; amplifier
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Podaci o prilogu
125-128-x.
2006.
objavljeno
Podaci o matičnoj publikaciji
Microelectronics, Electronics and Electronic Technologies + Hypermedia and Grid Systems MIPRO 2006
Biljanović, Petar ; Skala, Karolj
Rijeka: Hrvatska udruga za informacijsku i komunikacijsku tehnologiju, elektroniku i mikroelektroniku - MIPRO
Podaci o skupu
MIPRO 2006
predavanje
22.05.2006-26.06.2006
Opatija, Hrvatska