OPA990, OPA2990, OPA4990
ZHCSJC8I –FEBRUARY 2019 –REVISED AUGUST 2021
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内容
1 特性................................................................................... 1
2 应用................................................................................... 1
3 说明................................................................................... 1
4 修订历史记录.....................................................................2
5 引脚配置和功能................................................................. 4
6 规格................................................................................. 10
6.1 绝对最大额定值.........................................................10
6.2 ESD 额定值...............................................................10
6.3 建议运行条件............................................................ 10
6.4 单通道器件的热性能信息...........................................11
6.5 双通道器件的热性能信息...........................................11
6.6 四通道器件的热性能信息.......................................... 12
6.7 电气特征....................................................................13
6.8 典型特性....................................................................16
7 详细说明.......................................................................... 24
7.1 概述...........................................................................24
7.2 功能方框图................................................................24
7.3 特性说明....................................................................25
7.4 器件功能模式............................................................ 33
8 应用和实现.......................................................................34
8.1 应用信息....................................................................34
8.2 典型应用....................................................................34
9 电源相关建议...................................................................36
10 布局............................................................................... 36
10.1 布局指南..................................................................36
10.2 布局示例..................................................................36
11 器件和文档支持..............................................................39
11.1 器件支持..................................................................39
11.2 文档支持..................................................................39
11.3 接收文档更新通知................................................... 39
11.4 支持资源..................................................................39
11.5 商标.........................................................................39
11.6 Electrostatic Discharge Caution..............................39
11.7 术语表..................................................................... 39
12 机械、封装和可订购信息...............................................40
4 修订历史记录
注:以前版本的页码可能与当前版本的页码不同
Changes from Revision H (May 2021) to Revision I (August 2021)
Page
• 从器件信息表中删除了OPA2990 VSSOP-8 封装(DGK) 的预发布符号............................................................1
• 删除了引脚配置和功能部分中OPA2990 VSSOP-8 封装(DGK) 中的预览符号.................................................. 4
• 向引脚配置和功能部分中添加了解释DDF 封装和TDDF 封装之间差异的注释.................................................. 4
• 更正了建议运行条件中描述关断区域的拼写错误,以符合数据表的其余部分................................................... 10
• 在单通道热性能信息部分中将SOT-23-6 (DBV-6) 的结至环境热阻值从1174.5ºC/W 更改为174.5ºC/W。......11
• 向关断部分中添加了关于SHDN 引脚逻辑低信号的澄清声明...........................................................................32
• 更正了关断部分中关于关断启用和禁用时间的声明,分别从30µs 和3µs 更正到了11µs 与2.5µs,以匹配电气
特性部分........................................................................................................................................................... 32
Changes from Revision G (December 2020) to Revision H (May 2021)
Page
• 从器件信息表中删除了OPA4990 WQFN (16) 封装的预发布符号..................................................................... 1
• 从器件信息表中删除了OPA4990 X2QFN (14) 封装的预发布符号.................................................................... 1
• 删除了引脚配置和功能部分中OPA4990 和OPA4990S RTE 封装(WQFN) 中的预览符号................................ 4
• 删除了规格部分中的图形列表...........................................................................................................................10
• 在关断部分中阐明了关断引脚的阈值和最大电压电平.......................................................................................32
• 从器件和文档部分中删除了相关链接............................................................................................................... 39
Changes from Revision F (May 2020) to Revision G (December 2020)
Page
• 更新了整个文档中的表格、图和交叉参考的编号格式.........................................................................................1
• 从器件信息表中删除了OPA2990 SOT-23 (8) 封装的预发布符号......................................................................1
• 向器件信息表中添加了OPA2990 VSSOP (10) 封装..........................................................................................1
• 阐明了关于OPA990S 引脚功能的SHDN 符号..................................................................................................4
• 删除了引脚配置和功能部分中OPA2990 DDF 封装(SOT-23) 中的预览符号......................................................4
• 删除了引脚配置和功能部分中OPA2990S DGS 封装(VSSOP) 中的预览符号...................................................4
• 阐明了引脚功能部分中OPA2990S 的SHDN 符号............................................................................................. 4
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