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Lecture

Analog to Digital Conversion

Description

This lecture covers the principles of analog to digital conversion, focusing on potentiometric and segmented variants with multiplexer and decoding logic. It discusses the challenges of reducing the number of components while maintaining precision, as well as the impact of resistors and switches on conversion accuracy. The lecture also explores different converter scales, such as R/2R and weighted current sources, highlighting their advantages and limitations in achieving high-resolution digital outputs.

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Instructors (2)

Anisoara Ionescu

Maher Kayal

Maher Kayal received M.S. and Ph.D degrees in electrical engineering from the Ecole Polytechnique Fédérale de Lausanne (EPFL, Switzerland) in 1983 and 1989 respectively. He has been with the Electronics laboratories of the Ecole Polytechnique Fédérale de Lausanne (EPFL, Switzerland) since 1990, where he is currently a professor and director of the Energy Management and Sustainability" section. He has published many scientific papers, coauthor of three text books dedicated to mixed-mode CMOS design and he holds eleven patents. His technical contributions have been in the area of analog and Mixed-signal circuits design including highly linear and tunable sensors microsystems, signal processing and green energy management. Prizes and Honors Electronics Letters journal Premium Award 2013, Outstanding Paper Award? IEEE Mixdes 2013 Basil Papadias paper Award, IEEE Powertech 2013 Best Paper Awards, Mixdes 2013 Best Paper Awards, ICCAS 2012 Outstanding Paper Award- IEEE Mixdes 2012. Poland Section IEEE ED Chapter special award in 2011. Credit Suisse Award for Best Teaching- 2009. The William M. Portnoy Award at the Energy Conversion Congress and Exposition , California Sept 2009. Best Paper Award - IEEE-Mixdes 2009. High Quality Paper - IEEE Power Tech Conference June 2009. Best Paper Award - IEEE-Mixdes 2007. Best Paper Award - IEEE-TTTC International Conference on Automation, Quality and Testing, Robotics - 2006. Best Application Specific Integrated Circuit at the International European Design and Test Conference ED&TC - 1997. Ascom Award for the Best Work in Telecommunication Fields 1990. Publications Books. Books: Methodology for the Digital Calibration of Analog Circuits and Systems, Marc Pastre & Maher Kayal. Springer Publisher- (ISBN 1-4020-4252-3)-2006. Structured Analog CMOS Design, Danica Stefanovic & Maher Kayal. Springer Publisher-(ISBN 978-1-4020-8572-7)-2008. Linear CMOS RF Amplifiers for Wireless Applications, Maher Kayal, Springer Publisher. (ISBN 978-90-481-9360-8)-2010. Coeditor of Microelectronics Education Kluwer Academic Publishers. (ISBN 1-4020-2072-4). -2004.

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Related concepts (28)

Analog-to-digital converter

In electronics, an analog-to-digital converter (ADC, A/D, or A-to-D) is a system that converts an analog signal, such as a sound picked up by a microphone or light entering a digital camera, into a digital signal. An ADC may also provide an isolated measurement such as an electronic device that converts an analog input voltage or current to a digital number representing the magnitude of the voltage or current. Typically the digital output is a two's complement binary number that is proportional to the input, but there are other possibilities.

Digital-to-analog converter

In electronics, a digital-to-analog converter (DAC, D/A, D2A, or D-to-A) is a system that converts a digital signal into an analog signal. An analog-to-digital converter (ADC) performs the reverse function. There are several DAC architectures; the suitability of a DAC for a particular application is determined by figures of merit including: resolution, maximum sampling frequency and others. Digital-to-analog conversion can degrade a signal, so a DAC should be specified that has insignificant errors in terms of the application.

Digital electronics

Digital electronics is a field of electronics involving the study of digital signals and the engineering of devices that use or produce them. This is in contrast to analog electronics and analog signals. Digital electronic circuits are usually made from large assemblies of logic gates, often packaged in integrated circuits. Complex devices may have simple electronic representations of Boolean logic functions. The binary number system was refined by Gottfried Wilhelm Leibniz (published in 1705) and he also established that by using the binary system, the principles of arithmetic and logic could be joined.

Multiplexer

In electronics, a multiplexer (or mux; spelled sometimes as multiplexor), also known as a data selector, is a device that selects between several analog or digital input signals and forwards the selected input to a single output line. The selection is directed by a separate set of digital inputs known as select lines. A multiplexer of inputs has select lines, which are used to select which input line to send to the output.

Combinational logic

In automata theory, combinational logic (also referred to as time-independent logic or combinatorial logic ) is a type of digital logic which is implemented by Boolean circuits, where the output is a pure function of the present input only. This is in contrast to sequential logic, in which the output depends not only on the present input but also on the history of the input. In other words, sequential logic has memory while combinational logic does not.

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