A parallel-pipelined A/D converter with an area and power efficient architecture is described. By sharing amplifiers along the pipeline and also completely eliminating the amplifier from the last stage, an 8-b pipeline is realized using just three amplifiers (instead of seven amplifiers with a conventional pipeline architecture). By using two such pipelines in parallel, a 52 Msamples/s prototype A/D converter that is Intended for a switched digital video application has been implemented in a 0.9-μm CMOS technology. The device occupies 15 mm 2 and dissipates 250 mW from a 5 V supply
Published in:
Solid-State Circuits, IEEE Journal of
(Volume:32
,
Issue:
3
)
Date of Publication: Mar 1997