基于自加速技术的双向电平转换电路设计

Design of a Bi-direction Level Shifting Circuit Based on Self-acceleration Technology

设计了一种基于自加速技术的双向电平转换电路。通过设置自加速模块,对端口电压进行瞬态快速上拉,实现电平的快速转换。内建方向感测功能,可让器件自动控制数据传输方向。仿真结果表明,电路可实现两个电源VL(1.2~5.5 V)与VCC(1.6~5.5 V)之间任意电平的双向传输与转换(VL≤VCC),速度快,效率高。电路采用0.5μm CMOS工艺流片,实测最高工作频率可达16 Mbps。

A bi-directional level shifting circuit based on self-acceleration technology was presented.The fast level shifting was realized by setting the self-acceleration module which made the port voltage pulled up instantly.The direction of data transmission was been controlled automatically by the built-in direction detector.Simulation results show that the circuit can realize bidirectional transmission and shifting(VL≤VCC)between two power supplies VL(1.2~5.5 V)and VCC(1.6~5.5 V)at any level,with fast speed and high efficiency.This circuit is realized in the 0.5μm CMOS technology and operates at a fastest data rate of 16 Mbps.