基于控阈技术的电流型CMOS多值ADC电路设计

Circuit design of current-mode CMOS for multivalued ADC based on control threshold technology

本文利用传输电流开关理论对多值A/D转换器进行了理论分析,设计了基于数字电路设计理论中控阈技术的电流型CMOS多值A/D转换器电路,计算机模拟表明该电路设计具有正确的逻辑功能。利用该设计方法可避免模拟信号的复杂处理,显著地简化了电路结构,提高了A/D转换的信息密度。

By means of the theory of transmission current-switches, this paper analyzes the theory of multivalued A/D converter, and has designed the circuit of current-mode CMOS for multivalued ADC which based on control threshold technology. Computer simulation shows that it has a correct logic function. By virtue of this design method, the complicated circuits for analog signal processing can be omitted, the circuit structure of CMOS A/D converter is greatly simplified, and the information density for A/D converter has been improved.