关键词: 低功耗, 电平转换, 预开启, 预关断

Abstract: In modern integrated circuit design, to pursue low power consumption, different circuits need to work at different voltages. To achieve correct signal transmission between different operating voltages, a level shifter must be inserted between the two sets of voltage domain systems. A new level shifter structure that uses the current and next states of the circuit is proposed to achieve pre-activation and pre-turn-off during the conversion process, which can realize stable level shifting and fast switching. The 180 nm CMOS process is adopted, and the test results show that the structure can achieve level shifting from 0.8 V to 5.5 V, and the maximum speed reaches 804 Mbit/s.

Key words: low power consumption, level shifter, pre-activation, pre-turn-off