National Repository of Grey Literature 49 records found  beginprevious39 - 48next  jump to record: Search took 0.01 seconds. 
Design and function verification of simple operational amplifier using telescopic structure
Czanadi, Jindřich ; Kledrowetz, Vilém (referee) ; Háze, Jiří (advisor)
The work deals with design and function verification of the telescopic operational amplifier.
A Novel Structure of Low-Order High Resolution Delta-Sigma Modulator
Kledrowetz, Vilém ; Husák, Miroslav (referee) ; Michaeli, Linus (referee) ; Háze, Jiří (advisor)
The presented dissertation thesis deals with a novel structure of delta-sigma () modulator which compensates influence of higher harmonic distortion and therefore it is possible to achieve high resolution up to 16 bits. This novel proposed structure combines advantages of one bit quantizer modulators with mutli-bit modulators. The novel second order structure is presented, correct function is verified in MATLAB simulation enviroment and requirements for partial block are studied. The second part of the work deals with design of converter with novel structure of modulator using switched capacitor technique utilizing ONSemi I3T25 technology. Advantages and disadvantages of the novel structure are evaluated and novel structure is compared with common structures of modulators.
NEW PRINCIPLES OF GATE CAPACITANCE CHARACTERIZATION FOR SIGMA-DELTA MODULATORS
Sutorý, Tomáš ; Ďuračková, Daniela (referee) ; Husák, Miroslav (referee) ; Kolka, Zdeněk (advisor)
This thesis deals with the utilization of new principles of characterization of gate capacitances for sigma-delta modulators. Sigma-delta modulators are the integral part of sigma-delta analog-to-digital converters. The proposed new method is characterized by high resolution and modest requirements for laboratory equipment. It allows characterizing capacitances whose values are within the range which is used in sigma-delta modulators. The thesis contains description of the new method, the analysis of measurement accuracy and experimental results.
Modular approach to desing of modern analog devices in CMOS technology
Prokop, Roman ; Ďuračková, Daniela (referee) ; Hudec, Lubomír (referee) ; Musil, Vladislav (advisor)
The presented dissertation thesis deals with modular design of analog circuits in CMOS technology. The goal of the work is to design a set of modular microelectronic building blocks and realize the selected modern active circuits, working primarily in current mode. Nevertheless, the modular approach can be used for design of generally known classical elements, e.g. opamps, as well. As a part of the work, the development of the totally new highly versatile active circuit CCTA has been done, including detailed analysis of utilization and introduction of the most interesting applications. This circuit CCTA, together with relative, already theoretically treated circuit CDTA, has been realized here for the first time, in two different topologies. Final circuits were tested. On the basis of measurement results the library of behavioral models for PSpice was created, including exemplary simulations of the selected applications. Based on the obtained knowledge the brief comparison of voltage mode circuits and current mode circuits was done.
Design of precise DA converter for low-voltage applications using CMOS technology
Dušek, Petr ; Kledrowetz, Vilém (referee) ; Háze, Jiří (advisor)
This thesis focuses on design of an accurate digital to analog converter (DAC). The thesis provides material to understand the principle of conversion of digital signal to analog signal. Some possible structures of DAC are described in this thesis. The selected structure is used for design of the DAC using the CMOS 07 technology. Functionality of the DAC is verified with simulations using the PSPICE simulation program.
Design of the operational amplifier offset auto-compensation
Dula, Přemysl ; Kledrowetz, Vilém (referee) ; Prokop, Roman (advisor)
This work deals with the two-stage operational amplifier with automatic offset compensation. An operational amplifier is designed in Cadence design environment for possible implementation in technology CMOS07. Emphasis work is placed on minimum offset of the operational amplifier and the parameters, that are listed in the assignment of work.
Design and development of DA converter in CMOS technology
Komár, Karel ; Háze, Jiří (referee) ; Kledrowetz, Vilém (advisor)
The work deals with design of the converter digital to analog on transistor level. Requirements converter a minimum resolution of 10 bits, short conversion time, low power and small chip area. For the realization of the converter is selected technology I3T25
Preamplifier for biological signals processing
Derishev, Anton ; Prokop, Roman (referee) ; Khateb, Fabian (advisor)
The work deals with the design and optimization of amplifiers in CMOS technology with low supply voltage and low power consumption. The main aim is to design an amplifier to amplify the biological signal. The first part is a brief introduction to the theory of biological signals. The work also contains a brief description of the biological signal processing methods and their properties. The important part is the description of the methods to reduce the supply voltage of the amplifier. The practical part of this thesis focuses on the design amplifiers with low supply voltage and low power consumption. All active elements and application examples have been verified by PSpice simulator using the 0.18 µm TSMC CMOS parameters. Simulated plots are included in this thesis to illustrate behavior of structures.
Operational transconductance amplifier (OTA) for Field Programable Mixed-Signal Arrays
Czajkowski, Ondřej ; Háze, Jiří (referee) ; Bečvář, Daniel (advisor)
Operational amplifier will be designed and optimized with respect to set of required parameters. Real CMOS technology (available at Department of Microelectronics) will be used for designed OTA circuit and its simulations. Designed OTA will be used as universal operation amplifier configurable block in FPAA (field-programmable analog array) structures.
Design of a current feedback operational amplifier
Kšica, Radim ; Fujcik, Lukáš (referee) ; Bečvář, Daniel (advisor)
This Master`s thesis deals with properties of current feedback operational amplifier. The main goal of this work is creation design process of current feedback operational amplifier by using CMOS technology AMIS 0,7 µm. Next goal of this work is attestation of funciton our design process. Last goal is creation the datasheet of our amplifier.

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