Title :
CMOS folding A/D converters with current-mode interpolation
Author :
Flynn, Michael P. ; Allstot, David J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
fDate :
9/1/1996 12:00:00 AM
Abstract :
A CMOS folding and interpolating A/D conversion architecture fully compatible with standard digital CMOS technology is described. Fully-differential, continuous-time, current-mode, open-loop analog circuitry is used to achieve high speed. Results from 125 Ms/s 8-b and 150 Ms/s 6-b prototypes implemented in a digital 1 μm n-well CMOS process are presented. The 8-b (6-b) converter occupies 4 mm2 (2 mm2) and dissipates 225 mW (55 mW) from a single 5 V power supply
Keywords :
CMOS integrated circuits; analogue-digital conversion; interpolation; 1 micron; 225 mW; 5 V; 55 mW; 6 bit; 8 bit; CMOS; current-mode interpolation; folding A/D converters; fully-differential circuits; high speed circuit; n-well CMOS process; open-loop analog circuitry; Analog-digital conversion; CMOS logic circuits; Capacitance; Data preprocessing; Decoding; Interpolation; Signal generators; Signal processing; Temperature control; Threshold voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
