2
BUF20800-Q1
ZHCS348C –AUGUST 2011–REVISED AUGUST 2018
www.ti.com.cn
Copyright © 2011–2018, Texas Instruments Incorporated
目目录录
1 特特性性.......................................................................... 1
2 应应用用.......................................................................... 1
3 说说明明.......................................................................... 1
4 修修订订历历史史记记录录 ........................................................... 2
5 Pin Configuration and Functions......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings .................................... 4
6.2 ESD Ratings ............................................................ 5
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information ................................................. 5
6.5 Electrical Characteristics........................................... 6
6.6 Typical Characteristics.............................................. 8
7 Detailed Description.............................................. 9
7.1 Overview ................................................................... 9
7.2 Functional Block Diagram ....................................... 10
7.3 Feature Description................................................. 10
7.4 Device Functional Modes........................................ 13
7.5 Programming........................................................... 15
8 Application and Implementation ........................ 21
8.1 Application Information............................................ 21
8.2 Typical Application ................................................. 21
9 Power Supply Recommendations...................... 28
10 Layout................................................................... 28
10.1 Layout Guidelines ................................................. 28
10.2 Layout Example .................................................... 31
11 器器件件和和文文档档支支持持 ..................................................... 32
11.1 文档支持 ............................................................... 32
11.2 接收文档更新通知 ................................................. 32
11.3 社区资源................................................................ 32
11.4 商标....................................................................... 32
11.5 静电放电警告......................................................... 32
11.6 术语表 ................................................................... 32
12 机机械械、、封封装装和和可可订订购购信信息息....................................... 33
4 修修订订历历史史记记录录
注:之前版本的页码可能与当前版本有所不同。
Changes from Revision B (January 2018) to Revision C Page
• Changed OUT1-9 high output swing MIN number from "17.7" to "17.6"................................................................................ 6
• Added OUT1-9 high output swing for T
A
= +25°C" ................................................................................................................ 6
Changes from Revision A (November 2017) to Revision B Page
• Added INL spec over temperature.......................................................................................................................................... 6
• Added R1 and R2 callouts and corrected capacitor '10mF' value to '10µF' in Typical Application Configuration ............... 22
Changes from Original (August 2011) to Revision A Page
• 根据新的 TI 标准重新设置了格式:添加了
器件信息
表、
引脚配置和功能
部分、
规格
部分、
特性 说明
部分、
器件功
能模式
部分、
应用和实施
部分、
电源相关建议
部分、
布局
部分、
器件和文档支持
部分以及
机械、封装和可订购信息
部分......................................................................................................................................................................................... 1
• Changed to "Code 978" from "Code 1023" ............................................................................................................................ 6
• Changed to "Code 32" from "Code 00" .................................................................................................................................. 6
• Added MAX value for "OUT 10-18 output swing : low " parameter........................................................................................ 6