Title :
Design and analysis of a switched-capacitor-based peak detector
Author :
Zhang, Ming ; Llaser, Nicolas ; Mathias, Hervé
Author_Institution :
IEF, Univ. of Paris XI, Paris, France
Abstract :
In this paper, a CMOS peak detector is proposed. The proposed peak detection is based on signal´s slope variation and it can be easily exploited for positive as well as negative peak detection. Besides it can also be used for multiple peak detection without needing resetting operation, making the circuit implementation quite simple. A switched-capacitor-based (SC-based) implementation is given along with performance analysis based on functional as well as analytical model. The developed analysis gives an insight into the potential performance as well as a design guide to reach the desired target. To have a relative error less than 1 %, the frequency ratio of sampling signal to input signal should be over 22. The proposed peak detector´s operation is confirmed by experimental results from Anadigm FPAA developing board.
Keywords :
CMOS integrated circuits; field programmable analogue arrays; peak detectors; switched capacitor networks; Anadigm FPAA developing board; CMOS peak detector; frequency ratio; negative peak detection; relative error; sampling signal; signal slope variation; switched-capacitor-based peak detector; Accuracy; Clocks; Delay; Detectors; Field programmable analog arrays; Frequency measurement; Switches;
Conference_Titel :
Circuits and Systems (ISCAS), 2011 IEEE International Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-1-4244-9473-6
Electronic_ISBN :
0271-4302
DOI :
10.1109/ISCAS.2011.5937737
