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故障保护、高电压信号线路保护器

产品详情

主要特征

应用/用途

Parametric specs for Signal-Line Protectors
Functions 8-Line
Signal Path Leakage (±nA) (max) 20
ΔRON 10
VSUPPLY (V) 9.0 to 36.0
VSUPPLY (Dual) (±V) (Dual) 8 to 18
RON (Ω) (max) 100
Fault Protect. (±V) 40
Package/Pins SOIC (W)/18
SSOP/20
Budgetary
Price (See Notes)
4.69
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参量

Parametric specs for Signal-Line Protectors
Functions 8-Line
Signal Path Leakage (±nA) (max) 20
ΔRON 10
VSUPPLY (V) 9.0 to 36.0
VSUPPLY (Dual) (±V) (Dual) 8 to 18
RON (Ω) (max) 100
Fault Protect. (±V) 40
Package/Pins SOIC (W)/18
SSOP/20
Budgetary
Price (See Notes)
4.69

主要特征

  • Overvoltage Protection
    • ±40V with Power Off
    • ±36V with Power On
  • Open Signal Paths with Power Off
  • Output Clamps to Either Rail with an Input Overvoltage
  • Any On Channel Output is Not Affected by an Overvoltage to Any Other Channel
  • 100Ω max On-Resistance
  • 10ns Overvoltage Turn-On Delay
  • No Latchup During Power Sequencing
  • Rail-to-Rail Signal Handling
  • 500Ω Output Clamp Resistance During Overvoltage

应用/用途

  • 自动测试设备(ATE)
  • 数据采集系统
  • 热插拔板/系统
  • 过程控制系统
  • 冗余/备份系统
  • 高灵敏度仪表

描述

The MAX4506/MAX4507 multiple, two-terminal signal-line protectors are pin-compatible with the industry-standard MAX366/MAX367. These new circuit protectors feature fault-protected inputs and rail-to-rail signal handling capability. The input pins are protected from overvoltage faults up to ±36V with power on or ±40V with power off. During a fault condition, the input terminal becomes an open circuit and only nanoamperes of leakage current flow from the source; but the switch output (OUT_) furnishes typically 19mA from the appropriate polarity supply to the load. This ensures unambiguous rail-to-rail outputs when a fault begins and ends.

The MAX4506 contains three independent protectors while the MAX4507 contains eight independent protectors. They can protect both unipolar and bipolar analog signals using either unipolar (+9V to +36V) or bipolar (±8V to ±18V) power supplies.

These devices have no logic control inputs; the protectors are designed to be always-on when the supplies are on. On-resistance is 100Ω max and matched within 7Ω , and on-leakage is less than 0.5nA at TA = +25°C. The MAX4506 is available in 8-pin SO/DIP packages. The MAX4507 is available in 20-pin SSOP and 18-pin SO/DIP packages.

简化框图

MAX4506、MAX4507:典型工作电路 MAX4506、MAX4507:典型工作电路 Zoom icon

技术文档

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