高性能4/8通道故障保护模拟多路复用器 High Performance 4/8 Channel Fault-Protected Analog Multiplexers
Product Details
The ADG438F and ADG439F are CMOS analog multiplexers, with the ADG438F comprising eight single channels and the ADG439F comprising four differential channels. These multiplexers provide fault protection. Using a series n-channel, p-channel, and n-channel MOSFET structure, both device and signal source protection is provided in the event of an overvoltage or power loss. The multiplexer can withstand continuous overvoltage inputs from −40 V to +55 V. During fault conditions with power supplies off, the multiplexer input or output appears as an open circuit and only a few nanoamperes of leakage current flows. This protects not only the multiplexer and the circuitry driven by the multiplexer, but also protects the sensors or signal sources which drive the multiplexer.
The ADG438F switches one of eight inputs to a common output as determined by the 3-bit binary address lines, A0, A1, and A2. The ADG439F switches one of four differential inputs to a common differential output as determined by the 2-bit binary address lines, A0 and A1. An EN input on each device is used to enable or disable the device. When disabled, all channels are switched off.
**Product Highlights**
1. Fault Protection. The ADG438F and ADG439F can with-stand continuous voltage inputs up to −40 V or +55 V. When a fault occurs due to the power supplies being turned off, all the channels are turned off and only a leakage current of a few nanoamperes flows.
2. On channel saturates while fault exists.
3. Low RON.
4. Fast Switching Times.
5. Break-Before-Make Switching. Switches are guaranteed break-before-make so that input signals are protected against momentary shorting.
6. Trench Isolation Eliminates Latch-Up. A dielectric trench separates the p-channel and n-channel MOSFETs thereby preventing latch-up.
7. Improved Off Isolation. Trench isolation enhances the channel-to-channel isolation of the ADG438F/ADG439F.
**Applications**
### Features and Benefits
-40 V, + 55 V
输出接口数 1
触点类型 DPST-NC
供电电流 50 µA
电路数 1
通道数 1
耗散功率 2.6 mW
输入数 8
工作温度Max 105 ℃
工作温度Min -40 ℃
电源电压Max 15 V
电源电压Min 15 V
安装方式 Surface Mount
引脚数 16
封装 SOIC-16
长度 10 mm
宽度 4 mm
高度 1.5 mm
封装 SOIC-16
工作温度 -40℃ ~ 105℃
产品生命周期 Active
包装方式 Tube
制造应用 Unmanned Systems, Avionics, Aerospace and Defense
RoHS标准 Non-Compliant
含铅标准 Contains Lead
香港进出口证 NLR
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
ADG438FBR ADI 亚德诺 | 当前型号 | 当前型号 |
ADG438FBRZ 亚德诺 | 类似代替 | ADG438FBR和ADG438FBRZ的区别 |
DG509ACJ+ 美信 | 功能相似 | ADG438FBR和DG509ACJ+的区别 |
MAX338ESE+ 美信 | 功能相似 | ADG438FBR和MAX338ESE+的区别 |