MAX4631

故障保护、高电压、双路模拟开关


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说明

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.
MAX4631、MAX4632、MAX4633:引脚配置 MAX4631、MAX4632、MAX4633:引脚配置 放大+

关键特性

  • 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

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
Part NumberFunctionsConfig.ChannelsNormal PositionVSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
VSUPPLY (Dual)
(±V)
VSUPPLY (Dual)
(±V)
RON
(Ω)
IL(OFF)
(nA)
tON
(ns)
tOFF
(ns)
QINJECTION
(pC)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
minmaxminmaxmaxmaxmaxmaxSee Notes
MAX4631 SwitchSPST2Open9364.518850.5500400102218
PDIP/16
SOIC (N)/16
$3.61 @1k
MAX4632 SPDT-
PDIP/16
SOIC (N)/16
$4.48 @1k
MAX4633 DPSTOpen
SOIC (N)/16
$4.83 @1k
查看所有Switches and Multiplexers (Mid and High Voltage) (299)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

质量和环境数据

申请可靠性报告: MAX4631 
无铅封装的锡(Sn)晶须报告
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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