低电压低功耗ECL电路设计

Design of Low-voltage and Low-power ECL Circuits

首先指出了 ECL电路随着集成度和速度的提高 ,存在着功耗太大的问题 ,进而提出了采用低电压电源以降低功耗 ,为此发展了将串联开关转换成并联开关的技术 ,保证了电路能在低电压下正常工作 ,并由此实现了适合于低电压工作的 ECL电路的开关级设计。从对设计的电路进行的计算机模拟结果表明 ,采用文中提出的并联开关技术设计的电路 ,在电源电压为 -2 .5 V时 ,不仅具有正确的逻辑功能和较高的工作速度 ,且比采用-5 .0 V电源的电路节约了 80

In this paper, the problem of high power dissipation of ECL integrated circuits with the increase of the speed and density is discussed. Then, we propose to use low-voltage supply to decrease power dissipation for ECL circuits and develop a parallel switches technique instead of cascade switches to make ECL circuits operate correctly at low-voltage supply. Using this technique, ECL circuits which can operate at low-voltage supply can be designed at switch-level. The simulation results show that the designed ECL circuits with -2.5 V supply voltage using the parallel switches technique proposed not only have correct logic functions and high speed, but also decrease more than 80% power dissipation comparing with the counterparts with -5 V supply voltage.