MAX4448

6500V/µs、宽带、高输出电流、单端至差分线驱动器,带有使能端

业内最快的差分线驱动器


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说明

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.
MAX4447、MAX4448、MAX4449:典型工作电路 MAX4447、MAX4448、MAX4449:典型工作电路 放大+

关键特性

  • 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%

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

请查看具体的参数规格 Video/Wideband Line Drivers/Receivers (6)


Part NumberFunctionsBW
(MHz)
VSUPPLY
(V)
ICC
(mA)
IOUT
(mA)
Slew Rate
(V/µs)
Diff. Phase/ Gain
(deg/%)
AV
(V/V)
BW
(MHz)
Package/PinsOper. Temp.
(°C)
Budgetary
Price
(@ -3dB)(typ)(min)(0.1dB min)(See Notes)
MAX4447 Driver430
-5
5
469057000.02/0.012200
SOIC (N)/16
-40 to +85$0.65 @1k
MAX4448 3304300240
SOIC (N)/16
$3.09 @1k
MAX4449 40065005140
SOIC (N)/16
$3.02 @1k

Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

MAX4447EVKIT: MAX4447、MAX4448和MAX4449评估板
MAX4448EVKIT: MAX4447、MAX4448和MAX4449评估板
MAX4449EVKIT: MAX4447、MAX4448和MAX4449评估板
申请可靠性报告: MAX4448 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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