New Development of Analog-to-Digital Converters
Qi Wei, Fei Qiao and Huazhong Yang
Pages 214-220 (7)
The operational amplifier is one of the most significant performance bottlenecks in traditional Analog-to- Digital Converters. CMOS technology down-scaling results in lower voltage swings and transistor intrinsic gain. This trend increases the challenges in designing analog and mixed-signal circuits. This paper reviews a few promising patents on new development of analog-to-digital converters. The challenges in traditional operational amplifier based ADCs are analyzed.
Operational amplifier, pipelined ADC, SAR ADC, Analog-to-Digital Converters, Gain boost, Replicated operational amplifier, open-loop AC response
Institute of Circuits and Systems, Dept. of Electronic Engineering, Tsinghua Univ., Beijing, P. R. China, 100084.