Title :
An 8-bit two-step flash A/D converter for video applications
Author :
Cremonesi, A. ; Maloberti, F. ; Torelli, G. ; Vacchi, C.
Abstract :
A novel configuration for two-step analog-to-digital (A/D) flash conversion is described. The coarse and fine conversions are performed with a four-bit multiplexed flash converter, so only 15 comparators are necessary for an eight-bit converter. The D/A conversion and the subtraction required for the circuit operation are performed using the charge redistribution technique. A test chip, integrated with a 3-μm CMOS technology (area=3 mm2), has demonstrated the effectiveness of the proposed configuration
Keywords :
CMOS integrated circuits; analogue-digital conversion; video equipment; 3 micron; 8 bit; ADC; charge redistribution technique; comparators; course conversion; eight-bit converter; fine conversions; four-bit multiplexed flash converter; two-step flash A/D converter; video applications;
Conference_Titel :
Custom Integrated Circuits Conference, 1989., Proceedings of the IEEE 1989
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/CICC.1989.56700
