DocumentCode
439185
Title
A 1V CMOS fully-differential switched-opamp bandpass Σ Δ modulator
Author
Baschirotto, A. ; Castello, R.
Author_Institution
Universita´ di Pavia, Pavia, Italia
fYear
1997
fDate
16-18 Sept. 1997
Firstpage
152
Lastpage
155
Abstract
A 2nd order bandpass ΣΔ modulator operating with a single 1V supply voltage has been realized within a standard (VTHn =0.65V, VTHp =0.7V) 0.5µm CMOS technology. In order to avoid the use of on-chip voltage multiplication, the circuit has been designed using the Switched-opamp technique. The use of proposed fully-differential structures has been exploited to increase dynamic range which is about 45dB in a 20kHz bandwidth.
Keywords
Bandwidth; CMOS technology; Capacitance; Dynamic range; Frequency; Low voltage; MOS devices; Sampling methods; Switches; Switching circuits;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 1997. ESSCIRC '97. Proceedings of the 23rd European
Conference_Location
Southampton, UK
Type
conf
Filename
1470886
Link To Document