MAX4547 - 四/双路、低电压、双向RF/视频开关

MAX4547是Maxim美信半导体公司的一款模拟开关和复用器产品，MAX4547是四/双路、低电压、双向RF/视频开关，本站介绍了MAX4547的封装应用图解、特点和优点、功能等，并给出了与MAX4547相关的Maxim元器件型号供参考。

MAX4547 - 四/双路、低电压、双向RF/视频开关 - 模拟开关和复用器 - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

The MAX4545/MAX4546/MAX4547 are low-voltage T-switches designed for switching RF and video signals from DC to 300MHz in 50Ω and 75Ω systems. The MAX4545 contains four normally open single-pole/single-throw (SPST) switches. The MAX4546 contains two dual SPST switches (one normally open, one normally closed.) The MAX4547 contains two single-pole/double-throw (SPDT) switches.

Each switch is constructed in a "T"configuration, ensuring excellent high-frequency off isolation and crosstalk of -80dB at 10MHz. They can handle rail-to-rail analog signals in either direction. On-resistance (20Ω max) is matched between switches to 1Ω max and is flat (0.5Ω max) over the specified signal range, using ±5V supplies. The off leakage current is less than 5nA at +25°C and 50nA at +85°C.

These CMOS switches can operate with dual power supplies ranging from ±2.7V to ±6V or a single supply between +2.7V and +12V. All digital inputs have 0.8V/2.4V logic thresholds, ensuring both TTL- and CMOS-logic compatibility when using ±5V or a single +5V supply.

关键特性

以下关键特性由Maxim美信半导体提供：

Low 50Ω Insertion Loss: -1dB at 100MHz

High 50Ω Off Isolation: -80dB at 10MHz

Low 50Ω Crosstalk: -80dB at 10MHz

DC to 300MHz -3dB Signal Bandwidth

20Ω Signal Paths with ±5V Supplies

1Ω Signal-Path Matching with ±5V Supplies

0.5Ω Signal-Path Flatness with ±5V Supplies

±2.7V to ±6V Dual Supplies

+2.7V to +12V Single Supply

Low Power Consumption: < 1µW

Rail-to-Rail Bidirectional Signal Handling

Pin Compatible with Industry-Standard DG540, DG542, DG643

> 2kV ESD Protection per Method 3015.7

TTL/CMOS-Compatible Inputs with Single +5V or ±5V

热门应用

自动测试设备(ATE)

高速数据采集器

网络

射频切换

测试设备

视频信号路由

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