MAX367

信号通道电路保护器、三个独立的保护器


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说明

The MAX366 and MAX367 are multiple, two-terminal circuit protectors. Placed in series with signal lines, each two-terminal device guards sensitive circuit components against voltages near and beyond the normal supply voltages. These devices are used at interfaces where sensitive circuits are connected to the external world and could encounter damaging voltages (up to 35V beyond the supply rails) during power-up, power-down, or fault conditions.

The MAX366 contains three independent protectors and the MAX367 contains eight. They can protect analog signals using either unipolar (4.5V to 36V) or bipolar (±2.25V to ±18V) power supplies. Each protector is symmetrical. Input and output terminals may be freely interchanged.

These devices are voltage-sensitive MOSFET transistor arrays that are normally on when power is applied and normally open circuit when power is off. With ±10V supplies, on-resistance is 100Ω max and leakage is less than 1nA at +25°C.

When signal voltages exceed or are within approximately 1.5V of either power-supply voltage (including when power is off), the two-terminal resistance increases dramatically, limiting fault current as well as output voltage to sensitive circuits. The protected side of the switch maintains the correct polarity and clamps approximately 1.5V below the supply rail. There are no "glitches" or polarity reversals going into or coming out of a fault condition.
MAX366、MAX367:典型工作电路 MAX366、MAX367:典型工作电路 放大+

关键特性

  • ±40V Overvoltage Protection
  • Open Signal Paths with Power Off
  • 100Ω Signal Paths with Power On
  • 1nA Max Path Leakage at +25°C
  • 44V Maximum Supply Voltage Rating
  • Automatic Protection; No Programming or Controls

应用

  • 自动测试设备(ATE)
  • 数据采集
  • 热插拔板/系统
  • 过程控制系统
  • 冗余/备份系统
  • 高灵敏度仪表
Part NumberFunctionsSignal Path Leakage
(±nA)
ΔRONAnalog Signal Range
(V)
VSUPPLY
(V)
VSUPPLY (Dual)
(±V)
RON
(Ω)
Fault Protect.
(±V)
Package/PinsBudgetary
Price
maxDualmaxSee Notes
MAX366 3-Line17-12.5 to +13.54.5 to 36.02.25 to 18.010040
DICE SALES
PDIP/8
SOIC (N)/8
$2.01 @1k
MAX367 8-Line
PDIP/18
SOIC (W)/18
$3.08 @1k
查看所有Signal-Line Protectors (6)
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。

技术资料

设计指南 761 Automatic Test Equipment on a Budget

质量和环境数据

产品可靠性报告: MAX367.pdf 
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。

质量管理体系 >
环境管理体系 >

 
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相关资料

类型 编号 PDF 标题
设计指南 761 Automatic Test Equipment on a Budget