AD7788/AD7789
目录
AD7789 -规格............................................... ................... 3
AD7788 -规格............................................... ................... 4
AD7788 / AD7789规格.............................................. 5 .......
时序特性................................................ ..................... 6
绝对最大额定值............................................... ............. 8
引脚配置和功能说明............................. 9
典型性能特征........................................... 10
片内寄存器.............................................. ............................ 11
通信寄存器
( RS1 , RS0 = 0,0) ......................................... ................................ 11
状态寄存器
( RS1 , RS0 = 0,0 ;上电/复位=均为0x88 [ AD7788 ]
和0x8C [ AD7789 ] ) ............................................ ...................... 12
模式寄存器
( RS1 , RS0 = 0 , 1 ;上电/复位= 0×02 ) ............................... 12
数据寄存器
( RS1 , RS0 = 1,1 ;上电/复位= 0×0000 [ AD7788 ]
并为0x000000 [ AD7789 ] ) ............................................ .............. 13
ADC电路信息............................................... ............... 14
概述................................................. .................................... 14
噪声性能................................................ ..................... 14
数字接口................................................ .......................... 14
单次转换模式............................................... ........ 15
连续转换模式............................................. 15
连续读取模式............................................... ......... 16
电路说明................................................ ......................... 17
模拟量输入通道............................................... ................ 17
双极性/单极性配置.............................................. 17
数据输出编码............................................... ................... 17
参考输入................................................ ........................... 17
V
DD
监控................................................. ............................... 18
接地和布局............................................... ............... 18
外形尺寸................................................ ....................... 19
修订历史
修订版0 :初始版
第0版|第20页2