MAX4638 - 3.5Ω、单路8:1及双路4:1、低电压模拟多路复用器

MAX4638是Maxim美信半导体公司的一款宽带交换产品，MAX4638是3.5Ω、单路8:1及双路4:1、低电压模拟多路复用器，本站介绍了MAX4638的封装应用图解、特点和优点、功能等，并给出了与MAX4638相关的Maxim元器件型号供参考。

MAX4638 - 3.5Ω、单路8:1及双路4:1、低电压模拟多路复用器 - 宽带交换 - 低导通电阻8:1和双4:1复用器 - 美信半导体

产品概述

The MAX4638/MAX4639 are single 8:1 and dual 4:1 CMOS analog multiplexers/demultiplexers (muxes/demuxes). Each mux operates from a single +1.8V to +5V supply or dual ±2.5V supplies. These devices feature 3.5Ω on-resistance (RON) when powered with a single +5V supply and have -75dB off-isolation and -85dB crosstalk from the output to each off channel. The switching times are 18ns tON and 7ns tOFF. They feature a -3dB 85MHz bandwidth and a guaranteed 0.25nA leakage current at +25°C.

A +1.8V to +5.5V operating range makes the MAX4638/MAX4639 ideal for battery-powered, portable instruments. All channels guarantee break-before-make switching. These parts feature bidirectional operation and can handle rail-to-rail analog signals. All control inputs are TTL/CMOS-logic compatible. Decoding is in standard BCD format, and an enable input is provided to simplify cascading of devices. These devices are available in small 16-pin thin QFN, TSSOP, and SO packages, as well as a 20-pin TQFN package.

关键特性

以下关键特性由Maxim美信半导体提供：

Guaranteed RON

3.5Ω (+5V or ±2.5V Supplies)

6Ω (+3V Supply)

Guaranteed 0.4Ω RON Match Between Channels

Guaranteed 1Ω RON Flatness Over Signal Range

Guaranteed Low Leakage Currents

0.25nA at +25°C

Switching Times: tON = 18ns, tOFF = 7ns

+1.8V to +5.5V Single-Supply Operation

±2.5V Dual-Supply Operation

Rail-to-Rail Signal Handling

TTL/CMOS-Logic Compatible

Crosstalk: -80dB (1MHz)

Off-Isolation: -60dB (10MHz)

热门应用

音频/视频信号切换

自动测试设备(ATE)

电池供电设备

低电压数据采集系统

医疗装置

继电器替代品

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