2003 · 18 citations · 2 references
EngineeringComputer EngineeringElectrical EngineeringMicroelectronicsSemiconductor DevicesVlsi DesignAnalog Integrated CircuitsCmos Circuit DesignCurrent-voltage CharacteristicsDigital Integrated Circuit DesignDigital Integrated CircuitsTransistor BiasingCmos Analog Integrated CircuitsComparator DesignComparatorsDifferential Pair DesignInput Offset VoltageLow-voltage Cmos DesignOffset VoltageUltra-low-voltage Circuit Design
This paper presents a new voltage comparator design called Quantum Voltage (QV) comparator for the next generation deep sub-micron low voltage CMOS flash A/D converter (ADC). Unlike the traditional differential voltage comparators designed to minimize input-offset voltage error due to the mismatches in a differential transistor pair the QV comparators are designed to optimize the input-offset voltages by systematically and uniformly varying the transistor sizes of the differential transistor pair. The QV comparators allow very small voltage comparison, complete elimination of resistor ladder circuit, and dramatic improvement of linearity in an ADC.
2
Future-ready ultrafast 8bit CMOS ADC for system-on-chip applications
Jincheol Yoo, Daegyu Lee, Kyusun Choi et al. · 2002 · 34 citations
Engineering, Computer Engineering, Electrical Engineering +17