CMOS folding A/D converters with current-mode interpolation |
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| Authors: | Flynn MP Allstot DJ |
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| Affiliation: | Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA; |
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| 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 |
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