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1-Input/4-Output Video Distribution Amplifiers

Product Details

Key Features

Applications/Uses

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Key Features

  • Fixed Gain of 2V/V (MAX4137)
  • External Gain Set (MAX4138)
  • High Speed:
    • 185MHz -3dB Bandwidth (MAX4137)
    • 140MHz -3dB Bandwidth (MAX4138)
    • 1000V/µs Slew Rate
  • High Full-Power Bandwidths (VOUT = 2Vp-p):
    • 185MHz (MAX4137)
    • 140MHz (MAX4138)
  • 0.1dB Gain Flatness to 40MHz
  • Low Differential Gain/Phase Error: 0.10%/0.02°
  • High-Impedance Output Disable

Applications/Uses

  • Composite Video Preamplifiers
  • High-Resolution RGB CRT Monitors
  • High-Speed Analog Bus Drivers
  • RF Signal Processing
  • Video Switching and Distribution

Description

The MAX4137/MAX4138 are 1-input/4-output voltage-feedback amplifiers that combine high speed with fast switching for video distribution applications. The MAX4137 is internally set for a closed-loop gain of 2V/V, while the MAX4138 can be externally set for gains of 2V/V or greater.

The MAX4137 achieves a -3dB bandwidth of 185MHz, with 0.1dB gain flatness to 40MHz. The MAX4138's -3dB bandwidth is 140MHz, with 0.1dB gain flatness to 40MHz. Both devices deliver a 1000V/µs slew rate, as well as exceptional full-power bandwidths of 185MHz and 140MHz, respectively.

A 25ns channel switching time enables rapid multiplexing for picture-in-picture applications, yet maintains a high off-isolation of 75dB and all-hostile crosstalk of -50dB (f = 30MHz). The MAX4137/MAX4138's on-board logic selects any combination of the four signal outputs. Each output is capable of swinging ±2V and delivering up to 65mA of current.

For applications that require a 1-input/6-output distribution amplifier, see the MAX4135/MAX4136 data sheet.

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 .