In this paper, wide-range ADCDR(All digital clock and data recovery circuit) is proposed. The whole circuit of proposed clock and data recovery circuit is designed digitally to reduce influence about noise. So it is designed to operate at input data rate from 100Mb/s to 3Gb/s and uses 1/2-rate clock. This circuit is designed using 0.13㎛ CMOS process and verified simulation using spectre tool.