DocumentCode
516778
Title
A High-Resolution Current-Mode Sigma-Delta Modulator
Author
Moeneclaey, N. ; Kaiser, A.
Author_Institution
IEMN, Département ISEN, UMR CNRS 9929, 41 Boulevard Vauban, F - 59046 Lille Cedex, France
fYear
1996
fDate
17-19 Sept. 1996
Firstpage
260
Lastpage
263
Abstract
This paper describes techniques for the design of high-resolution oversampling analog-to-digital converters based on current memories. A key point is the reduction of non-linearities, in particular those introduced by the current switches. A current-memory cell with very high precision and linearity has been designed and used in an experimental 3rd order ¿-¿ modulator in a 0.8 micron digital CMOS process. A linearity of better than 14-bit and a maximum SNDR of 80 dB has been measured for an oversampling ratio of 64.
Keywords
Analog-digital conversion; CMOS process; Capacitors; Circuits; Delta-sigma modulation; Digital modulation; Dynamic range; Linearity; Switches; Threshold voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 1996. ESSCIRC '96. Proceedings of the 22nd European
Conference_Location
Neuchatel, Switzerland
Print_ISBN
2-86332-197-8
Type
conf
Filename
5468641
Link To Document