obsidian-notes/数字电路/转换/电平转换.md
CSSC-WORK\murmur 3e6078442b init version
2024-04-15 11:19:57 +08:00

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---
title: 电平转换
updated: 2022-08-08 08:47:00Z
created: 2022-01-08 13:17:43Z
---
# 原理
原理分析可参见 [TTL和CMOS的比较](../电平/TTL和CMOS的比较.md)
# 应用
开漏输出的buffer可做【高-低】,【低-高】转换
宽压、耐压的buffer可做【高-低】转换,不能做【低-高】转换如下图vcc=3.3v输入可5v
![a46efcf86c4c764799bb016f5b073f66.png](../../../_resources/a46efcf86c4c764799bb016f5b073f66.png)
# ADG3304/8
4/8通道双向电平转换==实测带载能力极弱== 目前没有使用成功,表现为高电平拉不起来