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Relevant bibliographies by topics / Bandgap reference

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Dissertations / Theses

Academic literature on the topic 'Bandgap reference'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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Dissertations / Theses on the topic "Bandgap reference"

1

Kevin, Tom. "Sub-1V Curvature Compensated Bandgap Reference." Thesis, Linköping University, Department of Electrical Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2585.

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<p>This thesis investigates the possibility of realizing bandgap reference crcuits for processes having sub-1V supply voltage. With the scaling of gate oxide thickness supply voltage is getting reduced. But the threshold voltage of transistors is not getting scaled at the same rate as that of the supply voltage. This makes it difficult to incorporate conventional designs of bandgap reference circuits to processeshaving near to 1V supply voltage. In the first part of the thesis a comprehensive study on existing low voltage bandgap reference circuits is done. Using these ideas a low-power, low-voltage bandgap reference circuit is designed in the second part of the thesis work. </p><p>The proposed bandgap reference circuit is capable of generating a reference voltage of 0.730V. The circuit is implemented in 0.18µm standard CMOS technology and operates with 0.9V supply voltage, consuming 5µA current. The circuit achieves 7 ppm/K of temperature coefficient with supply voltage range from 0.9 to 1.5V and temperature range from 0 to 60C.</p>

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2

Digvadekar, Ashish A. "A sub 1 V bandgap reference circuit /." Online version of thesis, 2005. https://ritdml.rit.edu/dspace/handle/1850/2595.

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3

Sanikommu, Ramanarayana Reddy. "Design and Implementation of Bandgap Reference Circuits." Thesis, Linköping University, Department of Electrical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-398.

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<p>An important part in the design of analog integrated circuits is to create reference voltages and currents with well defined values. To accomplish this on-chip, so called bandgap reference circuits are commonly used. A typical application for reference voltages is in analog-to-digital conversion, where the input voltage is compared to several reference levels in order to determine the corresponding digital value. The emphasis in this thesis work lies on theoretical understanding of the performance limitations as well as the design of a bandgap reference circuit, BGR.</p><p>In this project, a comprehensive study of bandgap circuits is done in the first stage. Then investigations on parameter variations like Vdd, number of bipolars, W/L of PMOS, DC gain of Opamp, RL and CL are done for a PTAT current generator circuit. This PTAT current generator circuit is a part of the implemented BGR circuit based on [10], which is capable of producing an output reference voltage of 0.75 V when the supply voltage is 1 V. All of these circuits are implemented in a 0.35u CMOS technology.</p>

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4

Knop, Jaroslav. "Nízkošumový referenční zdroj typu bandgap." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217239.

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This work deals with principles of design low noise bandgap reference using multiple in the process EPI92. The voltage reference is described and theoretic analysis noise performances is made. Results are compared with measured data realized breadboard BG reference and fabricated low drop-out regulators, which using different accurate bandgap references cells.

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5

Chan, Yiu Fai. "A new curvature-compensation technique for bandgap voltage reference." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0003/MQ28924.pdf.

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6

Herbst, Steven (Steven G. ). "A low-noise bandgap voltage reference employing dynamic element matching." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/77071.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 109).<br>Bandgap voltages references are widely used in IC design, but are sensitive to low-frequency noise and component mismatch. This thesis describes the design and testing of a new IC voltage reference that targets these issues through three dynamic element matching (DEM) subsystems. The first is a chopper OTA, and the second two are component rotation schemes: one to exchange the positions of two critical resistors, and the second to cycle through all BJTs, periodically selecting each to participate as the "1" transistor of the N:1 bandgap ratio. Practical designs that address the various switching issues typically associated with DEM, such as glitch and clock drift, are described. Analytic expressions for the effects of noise and mismatch throughout the bandgap reference are derived, along with expressions for calculating the improvement that can be achieved by DEM. A test chip was implemented in a 0.25[mu]m BiCMOS process; with its three DEM subsystems enabled it is shown to achieve a 20x 1/f noise improvement and a 34x mismatch error improvement.<br>by Steven Herbst.<br>M.Eng.

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7

Gupta, Vishal. "An accurate, trimless, high PSRR, low-voltage, CMOS bandgap reference IC." Diss., Available online, Georgia Institute of Technology, 2007, 2007. http://etd.gatech.edu/theses/available/etd-07052007-073154/.

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Thesis (Ph. D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2008.<br>Ayazi, Farrokh, Committee Member ; Rincon-Mora, Gabriel, Committee Chair ; Bhatti, Pamela, Committee Member ; Leach, W. Marshall, Committee Member ; Morley, Thomas, Committee Member.

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8

Sundar, Siddharth. "A low power high power supply rejection ratio bandgap reference for portable applications." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/46517.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2008.<br>Includes bibliographical references (p. 86-87).<br>A multistage bandgap circuit with very high power supply rejection ratio was designed and simulated. The key features of this bandgap include multiple power modes, low power consumption and a novel resistor trimming strategy. This design was completed in deep submicron CMOS technology, and is especially suited for portable applications. The bandgap designed achieves over 90 dB of power supply rejection and less than 17 microvolts of noise without any external filtering. With an external filtering capacitor, this performance is significantly enhanced. In addition, the design includes an efficient voltage-to-current converter and a fast-charge circuit for charging the external capacitor.<br>by Siddharth Sundar.<br>M.Eng.

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9

Kacafírek, Jiří. "Návrh přesné napěťové reference v ACMOS procesu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218682.

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In this thesis the principle of voltage reference especially bangap reference is described. Below are described two circuits of this type designed in ACMOS process. There is handmade evaluation of error analysis to identify main error contributors and also monte-carlo simulation. Also statistical analysis is made on the circuit. Results of all methods are compared. Error of reference voltage is compared for both circuits. Circuit with bigger error is optimized to achieve a better precision. Obtained results showed a good agreement of all methods, which evidences importance of hand error evaluation.

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10

Kotrč, Václav. "Napěťové reference v bipolárním a CMOS procesu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221111.

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This diploma thesis deals with precise design of Brokaw BandGap voltage reference comparing with MOS references. There is STEP BY STEP separation and analysis of proposed devices, using Monte Carlo analysis. There are also presented the methods for achieving a lower deviation of the output voltage for yielding device, which needs no trimming.

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