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Analog switch for switched current circuits
Jahn, Michal ; Kledrowetz, Vilém (referee) ; Pavlík, Michal (advisor)
This bachelor’s deals with a design of analog switches using switched current technique and CMOS technology. The design of these switches was implemented and subsequently simulated in the CADENCE environment where the emphasis was on suppression of transient processes. It is a charge injection error and a clock-feedthrough error when charging the capacities of channel during switching on or opening.
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The Modelling of the Delta-Sigma Modulators Modern Structures Utilizing Switched-Current Technique
Pavlík, Michal ; Ďuračková, Daniela (referee) ; Hudec, Lubomír (referee) ; Vrba, Radimír (advisor)
The thesis deals with an influence of the errors caused by utilization of the switched-current (SI) approach in the delta-sigma modulators. The basic block of the SI technique is current memory cell (CMC). The analysis of the errors starts with the design of the CMC using CADENCE software and AMIS CMOS 0.7 um technology. Based upon analysis of the CMC no ideal transfer function and advanced techniques of their behavior modeling are depicted. The mathematical models were made and implemented using MATLAB SIMULINK software. The models are very universal. Therefore, it is possible to analyze various structures of the delta-sigma modulators using demanded technology. The influence of the SI technique approach errors sources, on the modulators behavior with the CMC of the 1st and 2nd generation, is concluded at the end.
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Analog switch for switched current circuits
Jahn, Michal ; Kledrowetz, Vilém (referee) ; Pavlík, Michal (advisor)
This bachelor’s deals with a design of analog switches using switched current technique and CMOS technology. The design of these switches was implemented and subsequently simulated in the CADENCE environment where the emphasis was on suppression of transient processes. It is a charge injection error and a clock-feedthrough error when charging the capacities of channel during switching on or opening.
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The Modelling of the Delta-Sigma Modulators Modern Structures Utilizing Switched-Current Technique
Pavlík, Michal ; Ďuračková, Daniela (referee) ; Hudec, Lubomír (referee) ; Vrba, Radimír (advisor)
The thesis deals with an influence of the errors caused by utilization of the switched-current (SI) approach in the delta-sigma modulators. The basic block of the SI technique is current memory cell (CMC). The analysis of the errors starts with the design of the CMC using CADENCE software and AMIS CMOS 0.7 um technology. Based upon analysis of the CMC no ideal transfer function and advanced techniques of their behavior modeling are depicted. The mathematical models were made and implemented using MATLAB SIMULINK software. The models are very universal. Therefore, it is possible to analyze various structures of the delta-sigma modulators using demanded technology. The influence of the SI technique approach errors sources, on the modulators behavior with the CMC of the 1st and 2nd generation, is concluded at the end.
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