Title :
Rail-to-rail fully differential sample and hold based on differential difference amplifier
Author :
Ramírez-Angulo, J. ; Luján-Martínez, C.I. ; Rubia-Marcos, C. ; Carvajal, R.G. ; López-Martin, A.
Author_Institution :
Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM
Abstract :
A high-performance rail-to-rail sample and hold circuit is presented. It is based on a class AB fully differential rail-to-rail differential difference amplifier. Experimental results of a test chip in 0.5 mum CMOS technology show that it has SFDR = 69.5 dB with plusmn 1.25 V supplies, 2 MHz clock and 2Vpp, 200 kHz input signals.
Keywords :
CMOS integrated circuits; differential amplifiers; sample and hold circuits; CMOS technology; differential difference amplifier; frequency 200 kHz; rail-to-rail sample and hold circuit; size 0.5 micron;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20080996
