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Design of anti-aliasing filter for discrete-time delta-sigma modulators
Vogel, Vojtěch ; Háze, Jiří (referee) ; Kledrowetz, Vilém (advisor)
This work deals with the design of a second order anti-aliasing filter with a cutoff frequency in the order of hundreds of kHz using the switched capacitor technique. The use of this technique allows the design of accurate and tunable analog circuits without the use of resistors. In this work, the design of analog switches is described. Furthermore, the various circuits required for the design of the filter in the onsemi I3T80 technology are proposed.
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Design of Gm-C integrator for asynchronous delta-sigma modulators
Kekelák, Miroslav ; Prokop, Roman (referee) ; Kledrowetz, Vilém (advisor)
This thesis deals with the study of the design of Gm-C integrators suitable for asynchronous delta-sigma modulators. The theoretical part of the thesis describes the principle of synchronous and asynchronous delta-sigma modulators. A separate chapter is devoted to integrators used in Delta-sigma modulators. Another separate chapter is devoted to transconductors and linearization problems. In the practical part, selected circuits were implemented in I3T80 technology and verified in Spectre simulator.
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Design of Gm-C integrator for asynchronous delta-sigma modulators
Kekelák, Miroslav ; Prokop, Roman (referee) ; Kledrowetz, Vilém (advisor)
This thesis deals with the study of the design of Gm-C integrators suitable for asynchronous delta-sigma modulators. The theoretical part of the thesis describes the principle of synchronous and asynchronous delta-sigma modulators. A separate chapter is devoted to integrators used in Delta-sigma modulators. Another separate chapter is devoted to transconductors and linearization problems. In the practical part, selected circuits were implemented in I3T80 technology and verified in Spectre simulator.
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Design of anti-aliasing filter for discrete-time delta-sigma modulators
Vogel, Vojtěch ; Háze, Jiří (referee) ; Kledrowetz, Vilém (advisor)
This work deals with the design of a second order anti-aliasing filter with a cutoff frequency in the order of hundreds of kHz using the switched capacitor technique. The use of this technique allows the design of accurate and tunable analog circuits without the use of resistors. In this work, the design of analog switches is described. Furthermore, the various circuits required for the design of the filter in the onsemi I3T80 technology are proposed.
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