Title :
Low voltage SC circuit design with low -Vt MOSFETs
Author :
Bazarjani, Seyfi S. ; Snelgrove, W. Martin
Author_Institution :
Dept. of Electron., Carleton Univ., Ottawa, Ont., Canada
fDate :
30 Apr-3 May 1995
Abstract :
In this paper, low threshold voltage (Vt) “natural” transistors, available in some n+/p+ dual poly gate CMOS/BiCMOS processes, are proposed for low voltage switched capacitor circuit design. The impact of the subthreshold off-current of these low Vt devices on the performance of analog switched-capacitor (SC) circuits is analyzed. Methods for reducing the subthreshold off-current in analog switches are discussed and two new switch topologies (series transmission gate and composite switch) addressing this problem are presented
Keywords :
MOSFET circuits; switched capacitor networks; analog switched-capacitor circuits; composite switch; low threshold voltage MOSFETs; low voltage SC circuit design; n+/p+ dual poly gate CMOS/BiCMOS processes; natural transistors; series transmission gate; subthreshold off-current; BiCMOS integrated circuits; CMOS process; Circuit analysis; Circuit synthesis; Low voltage; Performance analysis; Switched capacitor circuits; Switches; Switching circuits; Threshold voltage;
Conference_Titel :
Circuits and Systems, 1995. ISCAS '95., 1995 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2570-2
DOI :
10.1109/ISCAS.1995.519940
