The rapid growth of the data rate in serial links reveals the problem of power consumption, motivating utilization of low power building blocks. This paper presents a low-power clock and data recovery (CDR). By employing dynamic CML latch which draws a current during half of the clock cycle and voltage-to-current(V/I) converter which performs the XOR function itself, power reduction in phase detector(PD) is achieved. The CDR circuit is simulated using 5-Gb/s data with 0.18-μm CMOS technology, and the circuit consumes 8.7mW from a 1.8-V supply.