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300MHz, Low-Power, High-Output Current, Differential Line Driver

Product Details

The MAX4147 differential line driver offers high-speed performance while consuming only 100mW of power. Its amplifier has fully symmetrical inputs and outputs and uses laser-trimmed, matched, thin-film resistors to deliver 70dB CMR at 10MHz. Using current-feedback techniques, the MAX4147 achieves a 300MHz bandwidth and a 2000V/µs slew rate.

Optimized for differential, high-output-current applications such as transformer drivers, the MAX4147 drives ±2.6V into a 26.5Ω load (single-ended) or ±5.6V into a 53Ω load (differential). This device is preset for a closed-loop gain of 2V/V. Its ultra-low 0.008%/0.03° differential gain/phase allow for a variety of video and RF signal-processing applications.

For power-sensitive applications, the MAX4147 has a shutdown function that reduces supply current to less than 1mA. In addition, superior SFDR (-82dBc at 10kHz, RL = 33Ω) makes it ideal as a transformer driver for HDSL applications.

For a complete differential transmission link, use the MAX4147 with the MAX4144 line receiver (see the MAX4144 data sheet for more information).

Key Features

  • 2V/V Fixed Gain
  • 300MHz -3dB Bandwidth
  • 2000V/µs Slew Rate
  • 82dBc SFDR at 10kHz
  • 70dB CMR at 10MHz
  • Low Differential Gain/Phase: 0.008%/0.03°
  • High Output Drive: ±5.6V into 53Ω
  • Low Power: 100mW

Applications/Uses

  • Differential ADC Driver
  • Differential Pulse Amplifier
  • VDSL, ADSL, HDSL
  • Video Twisted-Pair Driver

Simplified Block Diagram

MAX4147: Typical Application Circuit MAX4147: Typical Application Circuit Zoom icon

Technical Docs

Design & Development

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SIMULATION MODELS

MAX4147 Macromodel

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Parameters

Key Features

  • 2V/V Fixed Gain
  • 300MHz -3dB Bandwidth
  • 2000V/µs Slew Rate
  • 82dBc SFDR at 10kHz
  • 70dB CMR at 10MHz
  • Low Differential Gain/Phase: 0.008%/0.03°
  • High Output Drive: ±5.6V into 53Ω
  • Low Power: 100mW

Applications/Uses

  • Differential ADC Driver
  • Differential Pulse Amplifier
  • VDSL, ADSL, HDSL
  • Video Twisted-Pair Driver

Description

The MAX4147 differential line driver offers high-speed performance while consuming only 100mW of power. Its amplifier has fully symmetrical inputs and outputs and uses laser-trimmed, matched, thin-film resistors to deliver 70dB CMR at 10MHz. Using current-feedback techniques, the MAX4147 achieves a 300MHz bandwidth and a 2000V/µs slew rate.

Optimized for differential, high-output-current applications such as transformer drivers, the MAX4147 drives ±2.6V into a 26.5Ω load (single-ended) or ±5.6V into a 53Ω load (differential). This device is preset for a closed-loop gain of 2V/V. Its ultra-low 0.008%/0.03° differential gain/phase allow for a variety of video and RF signal-processing applications.

For power-sensitive applications, the MAX4147 has a shutdown function that reduces supply current to less than 1mA. In addition, superior SFDR (-82dBc at 10kHz, RL = 33Ω) makes it ideal as a transformer driver for HDSL applications.

For a complete differential transmission link, use the MAX4147 with the MAX4144 line receiver (see the MAX4144 data sheet for more information).

Simplified Block Diagram

MAX4147: Typical Application Circuit MAX4147: Typical Application Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal