DOUTA DOUTB RD/SCLK CS PAR/SER SEL VDRIVE
V5+ V5–
CLAMP CLAMP
T/H
V6+ V6–来自CLAMP CLAMP
T/H
PARALLEL
DB[15:0]
V7+ V7–
AD7609
T/H CLK OSC CONTROL INPUTS BUSY FRSTDATA
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AD7609 目录
特性 .................................................................................................. 1 应用 .................................................................................................. 1 配套产品 ......................................................................................... 1 功能框图 ......................................................................................... 1 修订历史 ......................................................................................... 2 概述 .................................................................................................. 3 规格 .................................................................................................. 4 时序规格 .................................................................................... 7 绝对最大额定值 .......................................................................... 11 热阻 .......................................................................................... 11 ESD警告 ................................................................................... 11 引脚配置和功能描述 ................................................................. 12 典型工作特性 .............................................................................. 15 术语 ................................................................................................ 19 工作原理 ....................................................................................... 21 转换器详解 ............................................................................. 21 模拟输入 .................................................................................. 21 ADC传递函数 ........................................................................ 22 内部/外部基准电压 ............................................................... 23 典型连接图 ............................................................................. 24 掉电模式 .................................................................................. 24 转换控制 .................................................................................. 25 数字接口 ....................................................................................... 26 并行接口(PAR/SER SEL = 0)................................................ 26 串行接口(PAR/SER SEL = 1)................................................ 26 转换期间读取 ......................................................................... 27 数字滤波器 ............................................................................. 28 布局指南 .................................................................................. 32 外形尺寸 ....................................................................................... 34 订购指南 .................................................................................. 34
Rev. B
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修订历史
2014年5月 — 修订版A至修订版B 更改专利尾注 ................................................................................ 1 更改图37 ....................................................................................... 22 更改图39和图40 .......................................................................... 23 2012年2月—修订版0至修订版A 更改模拟输入范围部分 ............................................................. 21 2011年7月—修订版0：初始版
09760-001
CLAMP CLAMP
V8+ V8–
CLAMP CLAMP
T/H
AGND
CONVST A CONVST B RESET RANGE
图1.
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T/H
2.5V LDO 2.5V LDO REFIN/REFOUT
V2+ V2–
CLAMP CLAMP
T/H
2.5V REF REF SELECT AGND OS 2 OS 1 OS 0