权电流型D/A转换器的设计  

Design of Weight Electric Current of D/A

作　　者：何文[1] 刘振来[2] 

机构地区：[1]张掖医学高等专科学校,甘肃张掖734000 [2]河西学院物理系,甘肃张掖734000

出　　处：《现代电子技术》2005年第17期107-108,共2页Modern Electronics Technique

摘　　要：权电流网络用于克服电阻网络D/A转换器中模拟开关的导通电阻和导通压降。利用倒Π型电阻网络设计了一种新颖的权电流型D/A转换器。相比由倒T型电阻网络组成的权电流型D/A转换器,该电路具有明显的优点,使其在电子技术应用领域有重要的现实意义和实用价值。The weight electric current network overcomed disadvantage of analog switch of breakover resistance and pressure drop in the resistance network. Designing a novel weight electric current of D/A by using inverter -Ⅱ resistance network. Comparing with inverter -T resistance network ,this circuit posses clear advantage. It has an important reality and utility of value in the application area of electronic technique.

关 键 词：倒T型电阻网络 倒Ⅱ型电阻网络 权电流网络 D/A转换器 

分 类 号：TN79[电子电信—电路与系统]