An 8-Bit, 100-MHz low glitch interpolation DAC

This paper describes an 8-Bit, 100-MHz current steering CMOS low glitch interpolation digital to analog converter (DAC). It includes a 16-tap voltage controlled delay line and 8-Bit based linear interpolators, making the effective clock rate up to 1.6-GHz. With the linear interpolation, the requirement on the analog reconstruction filter is relaxed, and low glitch digital to analog conversion is achieved. The chip is fabricated with a 3.3 V, 0.35 /spl mu/m digital CMOS process.