一般说明：MAX14778ETP+T
MAX14778ETP+T双路 4:1 模拟多路复用器支持模拟信号高达 ±25V，单个 3.0 至 5.5V供应。每个多路复用器都有单独的控制输入允许独立切换，使设备非常适合多路复用不同的通信信号相同的连接器引脚。 ±6kV 的扩展 ESD 保护（人体模型）可以直接连接到电缆和连接器。
MAX14778ETP+T具有 1.5Ω (最大值) 低导通电阻和 3mΩ（典型值）平坦度，以最大限度地提高信号完整性整个共模电压范围。每个多路复用器可承载高达 300mA 的连续电流通过任一方向的多路复用器。
MAX14778ETP+T支持全速 USB 1.1 的切换信号 (12Mbps) 和高达 20Mbps 的 RS-485 数据速率。
MAX14778ETP+T采用 20 引脚 (5mm x 5mm)TQFN 封装，额定温度范围为 -40°C 至 +125°C工业温度范围。
应用：MAX14778ETP+T
● RS-485/RS-232/USB 1.1 复用
● POS 周边设备
● 手持工业设备
● 通讯系统
● 音频/数据复用
● 连接器共享
● 游戏机
优点和特点：MAX14778ETP+T
● 单电源支持宽信号范围
电压消除负电源
• ±25V 信号范围
• 3.0V 至 5.5V 单电源
● 两个独立的多路复用器
• 先断后合操作
• 1.5Ω RON（最大值）
• 3mΩ RON 平坦度（典型值）
• 300mA 最大电流通过多路复用器
• 78pF 输入电容
• 75MHz 大信号带宽
• 20 引脚 TQFN (5mm x 5mm) 封装
● A_ 和 B_ 引脚上的扩展 ESD 保护
• ±6kV 人体模型 (HBM)
产品属性：MAX14778ETP+T
类型描述选择
类别 集成电路（IC）接口 - 模拟开关，多路复用器，多路分解器
制造商 Maxim Integrated
系列 -
包装 卷带（TR）剪切带（CT）Digi-Reel® 得捷定制卷带
零件状态 在售
开关电路 SP4T
多路复用器/解复用器电路 4：1
电路数 2
导通电阻（最大值） 1.5 欧姆
通道至通道匹配 (ΔRon) -
电压 - 电源，单 (V+) 3V ~ 5.5V
电压 - 供电，双 (V±) -
开关时间 (Ton, Toff)（最大值） 2ms，1.5ms
-3db 带宽 75MHz
电荷注入 1720pC
沟道电容 (CS(off)，CD(off)) 78pF
电流 - 漏泄 (IS(off))（最大值） 1μA
串扰 -103dB @ 100kHz
工作温度 -40°C ~ 85°C（TA）
安装类型 表面贴装型
封装/外壳 20-WQFN 裸露焊盘
供应商器件封装 20-TQFN（5x5）
基本产品编号MAX14778ETP+T
以下物料均有现货库存：MAX14778ETP+T
STM32F101RBT6
STM32F103CBT6
STM32F103C8T6
STM32F103R8T6
STM32F103VBT6
STM32F103RBT6
STM32F103VCT6
STM32F103ZET6
STM32F103VET6
STM32F103RET6
STM32F103RCT6
STM32F103RGT6
STM32F103RCY6TR
STM32F103T8U6
STM32F103VGT6
STM32F103ZGT6
STM32F105RBT6
STM32F105RCT6
STM32F105R8T6
STM32F105VCT6
STM32F107VCT6
STM32F107RCT6
STM32F100R8T6B
STM32F100C6T6B
STM32F100VCT6B
STM32F100RBT6B
STM32F100C8T6B
STM32F100C4T6B
STM32F215RGT6
STM32F205RGT6
STM32F205RET6
STM32F205RCT6
STM32F205VGT6
STM32F205VET6
MAX14778ETP+T
STM32F205VCT6
STM32F205ZET6
STM32F205ZGT6
STM32F207VCT6
STM32F207VGT6
STM32F207VET6
STM32F207ZET6
STM32F207ZGT6
STM32F373CCT6
STM32F301K8T6
STM32F302C8T6
STM32F302CBT6
STM32F302RCT6
STM32F302RBT6
STM32F302K8U6
STM32F302VET6
STM32F302VDT6
STM32F302VCT6
STM32F303CBT6
STM32F303CCT6
STM32F303RBT6
STM32F303RCT6
STM32F303RET6
STM32F303VCT6
STM32F303VET6
STM32F303ZET6
STM32F411CEU6
STM32F411CCU6TR
STM32F411RCT6
STM32F411RET6
STM32F411VET6
STM32F412RET6
STM32F413VGT6
STM32F415RGT6
STM32F415VGT6
STM32F410CBU6
STM32F410RBT6
STM32F427IGT6
STM32F427VIT6
STM32F427VGT6
STM32F427ZGT6
STM32F427ZIT6
STM32F429BIT6
STM32F429IIT6
STM32F429IGT6
STM32F429VGT6
STM32F429VIT6
STM32F429VET6
STM32F429ZGT6
STM32F429ZIT6
STM32F429ZET6
STM32F446RET6
STM32F446RCT6
STM32F446VET6
STM32F446VCT6
STM32F446ZET6
STM32F446ZEJ6
STM32F469NIH6
STM32F401CEU6
STM32F401CBU6
STM32F401RCT6
STM32F401RBT6
STM32F401RET6
STM32F405RGT6
STM32F405VGT6
STM32F405ZGT6
STM32F407IGT6
STM32F407IGH6
STM32F407IET6
STM32F407VGT6
STM32F407VET6
STM32F407ZET6
STM32F407ZGT6
STM32F407ZGT7
STM32F400CBT6
STM32F722RET6
STM32F730R8T6
STM32F730V8T6
STM32F746VGT6
STM32F756VGT6
STM32F765VIT6
STM32F767ZGT6
STM32F767IGT6
STM32F767NIH6
STM32F767BIT6
STM32F767VIT6
STM32F031K6U6
STM32F031F6P6
STM32F031C6T6TR
STM32F030K6T6
STM32F030F4P6
STM32F030C8T6
STM32F030CCT6
STM32F030C6T6
STM32F030RCT6
STM32F030R8T6
STM32F042K6T6
STM32F042F6P6
STM32F042C6T6
STM32F051K8U6
STM32F051K6U6
STM32F051C8T6
STM32F051C8T7TR
STM32F051R8T6
STM32F051R8T7
STM32F071VBT6
STM32F071CBT6
STM32F071CBU6
STM32F071RBT6
STM32F072VBT6
STM32F072CBT6
STM32F072C8T6
STM32F072CBU6TR
STM32F072RBT6
STM32F072R8T6
STM32F070CBT6
STM32F070F6P6
STM32F070RBT6
STM32G474VET6
STM32G431CBT6
STM32G071CBT6
STM32G071GBU6
STM32G071RBT6
STM32G070KBT6
STM32G070CBT6
STM32G070RBT6
STM32G031F8P6
STM32G031K6T6
STM32G031J6M6
STM32G031G8U6
STM32G030K6T6
STM32G030K8T6
STM32G030C8T6
STM32G030F6P6TR
STM32H743BIT6
STM32H743IIT6
STM32H743VIT6
STM32H743VIH6
STM32H743ZIT6
STM32H743XIH6
STM32H750IBK6
STM32H750VBT6
STM32H750XBH6
STM32L151C8T6A
STM32L151CBT6A
STM32L151CBU6
STM32L151CCU6
STM32L151RCT6
STM32L151RET6
STM32L151RDT6
STM32L151VDT6
STM32L431CCT6
STM32L431CBT6
STM32L431CCU6
STM32L431RCT6
STM32L431VCT6
STM32L433VCT6
STM32L433RCT3
STM32L433RCT6
STM32L452REY6TR
STM32L471RGT6
STM32L471RET6
STM32L475VET6
STM32L476RGT6
STM32L476VET6
STM32L476RCT6
STM32L476VGT6
STM32L496RGT6
STM32L011D4P6
STM32L010C6T6
STM32L011F4U6TR
STM32L011G4U6
STM32L031F6P6
STM32L031K6T6
STM32L031G6U6
STM32L051K8U6
STM32L051C8T6
STM32L051R8T6
STM32L052R8T6
STM32L053R8T6
STM32L071RBT6
STM32L071CBT6
STM32L072RBT6
STM32L072CBT6
STM32L073RZT6
STM32L073V8T6
STM8L151C6T6
STM8L151C8T6
STM8L151K4T6
STM8L151K6T6
STM8L151G6U6
STM8L151G4U6
STM8L152C6T6
STM8L152R8T6
STM8L152M8T6
STM8L101F3P6TR
STM8L101K3T6
STM8L101F3U6TR
STM8L001J3M3TR
STM8L051F3P6
STM8L052C6T6
STM8L052R8T6
STM8L050J3M3TR
