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MAX4508：故障保护、高电压、单8选1/双4选1多路复用器，带有输出箝位

The MAX4508/MAX4509 are 8-to-1 and dual 4-to-1 fault-protected multiplexers that are pin compatible with the industry-standard DG508/DG509. The MAX4508/MAX4509 operate with dual supplies of ±4.5V to ±20V or a single supply of +9V to +36V. These multiplexers feature fault-protected inputs, rail-to-rail signal handling capability, and overvoltage clamping at 150mV beyond the rails. Both parts offer ±40V overvoltage protection with supplies off and ±25V protection with supplies on. On-resistance is 400Ω max and is matched between channels to 15Ω max. All digital inputs have TTL logic thresholds, ensuring both TTL and CMOS logic compatibility when using a single +12V supply or dual ±15V supplies.

关键特性 ±40V Fault Protection with Power Off ±25V Fault Protection with ±15V Supplies Rail-to-Rail Signal Handling No Power-Supply Sequencing Required All Channels Off with Power Off Output Clamped to Appropriate Supply Voltage During Fault Condition 1kΩ Output Clamp Resistance During Overvoltage 400Ω max On-Resistance 20ns Fault-Response Time ±4.5V to ±20V Dual Supplies +9V to +36V Single Supply TTL/CMOS-Compatible Logic Inputs

MAX4508、MAX4509：功能框图 应用 航空电子 数据采集系统 工业与过程控制 冗余/备份系统 信号路由

数据手册DataSheet

关键参数

技术资料

• Fault Protection Saves Multiplexers, Switches, and Downstream Circuitry
• Fault-Tolerant Analog Switches

质量和环境数据

• MAX4508.pdf

订购型号