一种MCM12位A／D转换器的设计和研制  

The Development of a 12 Bit Analog to Digital Converter MCM

作　　者：何遐龄[1] 曾大富[1] 

机构地区：[1]电子工业部第24研究所

出　　处：《微电子学》1996年第6期390-397,共8页Microelectronics

摘　　要：介绍了一种ＭＣＭ１２位逐次逼近型Ａ／Ｄ转换器ＳＡＤ５０３的特点和工作原理，探讨了它的系统设计、电路设计、工艺技术，阐述了其研制及应用。这种Ａ／Ｄ转换器在３６．５ｍｍ×１０．５ｍｍ的双层薄膜布线陶瓷基板上组装了１８个ＩＣ裸芯片和其他片式器件及电阻网络，并封装于３２引出端双列直插式陶瓷管壳中。线性误差±１／２ＬＳＢ，微分线性误差＜±１ＬＳＢ，转换时间６μｓ。A 12 bit successive approximation analog to digital converter has been developed in the form of multichip module(MCM).Its theory of operation and characteristics are presented.The circuit and system design and process technology are described.The MCM of A/D converter consists of 18 IC chips,some surface mount devices and resistor networks on 36.5 mm×10.5 mm ceramic substrate with double layer routing.The product has a linearity error≤±1/2 LSB,differential linearity error<±1 LSB,conversion time of 6 μs and maximum power dissipation of 870 mW.

关 键 词：模拟电路 多芯片组件 模/数转换器 设计 

分 类 号：TN792[电子电信—电路与系统]