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Maxim产品 - MAX4631介绍

MAX4631 - 故障保护、高电压、双路模拟开关

MAX4631是Maxim美信半导体公司的一款保护器产品，MAX4631是故障保护、高电压、双路模拟开关，本站介绍了MAX4631的封装应用图解、特点和优点、功能等，并给出了与MAX4631相关的Maxim元器件型号供参考。

MAX4631 - 故障保护、高电压、双路模拟开关 - 保护器 - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

The MAX4631/MAX4632/MAX4633 high-voltage, dual analog switches are pin compatible with the industry-standard DG401/DG403/DG405. They upgrade the existing devices with fault-protected inputs and rail-to-rail signal handling capabilities. The MAX4631/MAX4632/MAX4633's normally open (NO) and normally closed (NC) terminals are protected from overvoltage faults up to 36V during power-up or power-down. During a fault condition, these terminals become open circuit and only nanoamperes of leakage current flow from the source, yet the switch output (COM_) continues to furnish up to 18mA of the appropriate polarity supply voltage to the load. This ensures unambiguous rail-to-rail outputs when a fault begins and ends. On-resistance is 85Ω (max) at +25°C and is matched between switches to 6Ω (max). Off-leakage current is only 0.5nA at +25°C and 5nA at +85°C.

The MAX4631 has two NO single-pole/single-throw (SPST) switches. The MAX4632 has two NO/NC single-pole/double-throw (SPDT) switches. The MAX4633 has two NO double-pole/single-throw (DPST) switches.

These CMOS switches operate with dual power supplies ranging from ±4.5V to ±18V or a single supply between +9V and +36V. All digital inputs have +0.8V and +2.4V logic thresholds, ensuring both TTL- and CMOS-logic compatibility when using ±15V or a single +12V supply.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • Fault Protection
  • ±40V with Power Off
  • ±36V with ±15V Supplies (MAX4631/MAX4633)
  • ±25V with ±15V Supplies (MAX4632)
  • Rail-to-Rail Signal Handling
  • No Power-Supply Sequencing Required
  • All Switches Off with Power Off
  • Output Clamped to Appropriate Supply Voltage During Fault Condition; No Transition Glitch
  • 85Ω (max) Signal Paths with ±15V Supplies
  • ±4.5V to ±18V Dual Supplies
  • +9V to +36V Single Supply
  • Low Power Consumption: <6mW
  • Pin Compatible with Industry-Standard DG401/DG403/DG405
  • TTL- and CMOS-Logic Compatible Inputs with Single +9V to +15V, or ±15V Supplies
    • 热门应用
  • 自动测试设备(ATE)
  • 航空电子
  • 数据采集
  • 工业与过程控制系统
  • 冗余/备份系统
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