MAX4449 - 6500V/µs、宽带、高输出电流、单端至差分线驱动器，带有使能端

MAX4449是Maxim美信半导体公司的一款视频芯片产品，MAX4449是6500V/µs、宽带、高输出电流、单端至差分线驱动器，带有使能端，本站介绍了MAX4449的封装应用图解、特点和优点、功能等，并给出了与MAX4449相关的Maxim元器件型号供参考。

MAX4449 - 6500V/µs、宽带、高输出电流、单端至差分线驱动器，带有使能端 - 视频芯片 - 业内最快的差分线驱动器 - 美信半导体

产品概述

The MAX4447/MAX4448/MAX4449 single-ended-to-differential line drivers are designed for high-speed communications. Using current feedback for greater bandwidth, these devices deliver full-power bandwidths up to 405MHz and feature slew rates as high as 6500V/µs. The MAX4447 has a fixed gain of +2V/V and a small-signal bandwidth of 430MHz. The MAX4448/MAX4449 have small-signal bandwidths of 330MHz and 400MHz, respectively, and are internally compensated for minimum gain configurations of +2V/V and +5V/V, respectively. For greater design flexibility, the MAX4448/MAX4449 allow for variable gain selection using external gain-setting resistors. A low-power enable mode reduces current consumption below 5.5mA and places the outputs in a high-impedance state.

The MAX4447/MAX4448/MAX4449 can deliver differential output swings of ±6.2V from ±5V supplies with a 50Ω load. Excellent differential gain/phase and noise specifications make these amplifiers ideal for a wide variety of video and RF signal-processing and transmission applications.

关键特性

以下关键特性由Maxim美信半导体提供：

6500V/µs Slew Rate (MAX4449)

Small-Signal Bandwidth

430MHz (MAX4447)

330MHz (MAX4448)

400MHz (MAX4449)

200MHz 0.1dB Gain Flatness (MAX4447)

130mA Output Drive Current

+2V/V Internally Fixed Gain (MAX4447)

External Gain Selection

>+2V/V (MAX4448)

>+5V/V (MAX4449)

-78dB SFDR at 100kHz

Low Differential Gain/Phase: 0.01%/0.02°

Ultra-Low Noise: 23nV per root-Hz at fIN = 1MHz

8ns Settling Time to 0.1%

热门应用

同轴电缆至双绞线转换器

差分ADC驱动器

差分线驱动器

差分脉冲放大器

高速差分发送器

单端至差分转换器

视频和射频信号处理与传输

xDSL应用

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