Title :
A Current-mode CMOS Sample-and-Hold Circuit for ADC
Author :
Mahatthumthanant, Phinet ; Kamsri, Thawatchai ; Petchmaneelumka, Wandee ; Sungkabunchoo, Tiparat ; Riewruja, Vanchai
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok
Abstract :
This paper presents a current-mode sample-and-hold circuit using 0.5 mum CMOS technology. The input signal is sampled using a current subtracter and a half wave rectifier instead of a sampling switch used in the conventional sample-and-hold circuit. As a result, the switch feedthrough error is eliminated. The proposed circuit achieves high sampling frequency up to 100 MHz and high accuracy. The performances of the proposed circuit are demonstrated by PSPICE simulation results
Keywords :
CMOS integrated circuits; SPICE; analogue-digital conversion; rectifying circuits; sample and hold circuits; signal sampling; 0.5 micron; ADC; CMOS technology; PSPICE simulation; current subtracter; current-mode sample-and-hold circuit; half wave rectifier; signal sampling; Breakdown voltage; CMOS technology; Clocks; Detectors; Frequency; Rectifiers; Sampling methods; Switches; Switching circuits; Voltage control; Current-mode; Half-wave rectifier; Sample-and-hold; Subtracter;
Conference_Titel :
SICE-ICASE, 2006. International Joint Conference
Conference_Location :
Busan
Print_ISBN :
89-950038-4-7
Electronic_ISBN :
89-950038-5-5
DOI :
10.1109/SICE.2006.314649
