DocumentCode
516403
Title
A Fourth-Order ΣΔ Converter with Self-Tuning Continuous Time Noise Shaper
Author
Redman-White, W. ; Durham, A M
Author_Institution
Dept of Electronics and Computer Science, University of Southampton, UK; Philips Semiconductors, Southampton, UK
Volume
1
fYear
1991
fDate
11-13 Sept. 1991
Firstpage
249
Lastpage
252
Abstract
A fourth order monolithic ΣΔ converter is presented. The circuit avoids problems associated with switched capacitor samplers by using a completely continuous-time noise shaper. Integrated passive components are used, with a self-tuning circuit to make negligible the associated uncertainty in the time constants, which is a serious problem in such a high order design. The circuit is unconditionally stable and recovers immediately from gross overload without resetting integrators. The chip is fabricated in 1.6u CMOS, and operates from a single 5V supply.
Keywords
Bandwidth; Capacitors; Circuit noise; Clocks; Frequency; Linearity; Noise shaping; Semiconductor device noise; Stability; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 1991. ESSCIRC '91. Proceedings - Seventeenth European
Conference_Location
Milan, Italy
Type
conf
Filename
5468019
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