A reliable low-power fast skew-compensation circuit

A reliable low-power fast skew-compensation circuit is proposed. Operating on the clock with a 50% duty cycle, the new design is more reliable compared to conventional SMD-based circuits [1]-[3], which can operate only on the pulsed clock. This new circuit also gets phase locking within two clock cycles. The test circuit works successfully between 600-MHz ~ 800-MHz with a power consumption of 25-μW/MHz ~ 26-μW/MHz. When measured at 616.9-MHz and 791.4-MHz, the static phase is 76.8-ps and 124.5-ps, respectively.