A Linear-Approximation Technique for Digitally-Calibrated Pipelined ADCs
Journal
Proceedings - IEEE International Symposium on Circuits and Systems
Pages
1382-1385
Date Issued
2005-05
Author(s)
D. L. Shen
Abstract
Open-loop amplifiers enrich high-speed capability of pipelined analog-to-digital converters (ADCs). Because both finite gain and circuit nonlinearity limit the accuracy of this approach, a linear-approximation calibration technique is proposed to compensate such non-ideal effects. Due to the nature of two phase requirements, double sampling technique is applied to achieve continuous-time on-line calibration without interrupting the normal data conversion. Pushing the complexity of calibration into the digital domain relaxes the stringent design requirements of analog circuits.
SDGs
Other Subjects
Approximation techniques; Calibration techniques; Continuous time; Data conversion; Design requirements; Digital domain; Double sampling technique; Finite gain; High-speed; Non-Linearity; Nonideal effects; On-line calibration; Open-loop amplifiers; Pipelined A/D converters; Pipelined analog-to-digital converter; Two phase; Analog circuits; Analog to digital conversion; Calibration; Digital circuits
Type
conference paper
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