12位AD转换器MAX1246/MAX1247的原理及应用  

The Theory and Application About the MAX1246/MAX1247

作　　者：杨慧[1] 李龙[1] 

机构地区：[1]中山市中等专业学校

出　　处：《甘肃教育学院学报（自然科学版）》1999年第3期32-38,共7页Journal of Gansu Education College(Natural Science Edition)

摘　　要：ＭＡＸ１２４６／ＭＡＸ１２４７是ＭＡＸＩＭ于１９９７年最新出品的１２位串行输出Ａ／Ｄ转换芯片．具有工作能耗低、采样、转换速度快、精度高、接口逻辑简单以及灵活的可编程控制模式等优点．详细分析和说明了该芯片的工作原理。The MAX1246/MAX1247 12-bit data-acquisition systems combine a 4-channel multiplext highbandwidth trach/hold and serial interface with high conversion speed and low power consumption.Both device analog inputs are software configurable for unipolar/bipolar and singleended/differential operation.The MAX/1246/1247 use either the internal clock or an external.Serial interface clock to perform successive-approximation analog to digital conversions These devices provide a hard wired SHDN pin and a software selectable power down and can be programmed to automatically shut down at the end of a conversion.

关 键 词：模数转换 串行 A/D转换器 芯片 原理 应用 

分 类 号：TP335.4[自动化与计算机技术—计算机系统结构]