Title :
Improvement of Bootstrapped Switch using Track and Precharge Phase
Author :
Retdian, Nicodimus ; Takagi, Shigetaka ; Fujii, Nobuo
Author_Institution :
Dept. of Commun. & Integrated Syst., Tokyo Inst. of Technol.
Abstract :
This paper discusses the input range limitation problems in track-and-hold circuit and the compensation method using a bootstrapped switch. A bootstrapped switch with an additional control circuit is proposed to compensate charge loss in conventional bootstrapped switch circuit. Simulation results using 0.18 mum CMOS process parameters show that the proposed circuit reduces the bootstrap capacitance down to 25% for the conventional circuit.
Keywords :
CMOS integrated circuits; bootstrap circuits; compensation; sample and hold circuits; switches; 0.18 micron; CMOS process; bootstrapped switch; compensation method; control circuit; reduced bootstrap capacitance; track-and-hold circuit; CMOS technology; Capacitance; Communication switching; Integrated circuit technology; MOSFET circuits; Power supplies; Switched capacitor circuits; Switches; Switching circuits; Threshold voltage;
Conference_Titel :
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
Conference_Location :
New Orleans, LA
Print_ISBN :
1-4244-0920-9
Electronic_ISBN :
1-4244-0921-7
DOI :
10.1109/ISCAS.2007.378225
