A high yield 12-bit 250-MS/s CMOS D/A converter

A 12-bit linearity binary-weighted all MOS transistor D/A converter is presented. Experimental results demonstrate the feasibility of fabricating with high yield such a converter in a standard CMOS 0.7 /spl mu/m technology. The output drives a doubly terminated 50 /spl Omega/ coaxial cable. The full scale 10-90% rise/fall time is 4 ns. The active chip area is 1 mm/sup 2/.