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Single/Triple, Low-Glitch, 250MHz, Current Feedback Amplifiers with High-Speed Disable

Product Details

The MAX4188/MAX4189/MAX4190 are low-power, current-feedback video amplifiers featuring fast disable/ enable times and low switching transients. The triple MAX4188 and the single MAX4190 are optimized for applications with closed-loop gains of +2V/V (6dB) or greater and provide a -3dB bandwidth of 200MHz and 185MHz, respectively. The triple MAX4189 is optimized for closed-loop applications with gains of +1V/V (0dB) or greater and provides a 250MHz -3dB bandwidth. These amplifiers feature 0.1dB gain flatness up to 80MHz with differential gain and phase errors of 0.03% and 0.05°. These features make the MAX4188 family ideal for video applications.

The MAX4188/MAX4189/MAX4190 operate from a +5V single supply or from ±2.25V to ±5.5V dual supplies. These amplifiers consume only 1.5mA per amplifier and are capable of delivering ±55mA of output current, making them ideal for portable and battery-powered equipment.

The MAX4188/MAX4189/MAX4190 have a high-speed disable/enable mode that isolates the inputs, places the outputs in a high-impedance state, and reduces the supply current to 450µA per amplifier. Each amplifier can be disabled independently. High off isolation, low switching transient, and fast enable/disable times (120ns/35ns) allow these amplifiers to be used in a wide range of multiplexer applications. A settling time of 22ns to 0.1%, a slew rate of up to 350V/µs, and low distortion make these devices useful in many generalpurpose, high-speed applications.

The MAX4188/MAX4189 are available in a tiny 16-pin QSOP package, and the MAX4190 is available in a space-saving 8-pin µMAX® package.

Key Features

  • Low Supply Current: 1.5mA per Amplifier
  • Fast Enable/Disable Times: 120ns/35ns
  • Very Low Switching Transient: 45mVp-p
  • High Speed
    • 200MHz -3dB Small-Signal Bandwidth (MAX4188, AVCL ≥ +2)
    • 250MHz -3dB Small-Signal Bandwidth (MAX4189, AVCL ≥ +1)
    • 185MHz -3dB Small-Signal Bandwidth (MAX4190, AVCL ≥ +2)
  • High Slew Rate
    • 350V/µs (MAX4188, AVCL ≥ +2)
    • 175V/µs (MAX4189, AVCL ≥ +1)
  • Excellent Video Specifications
    • 85MHz -0.1dB Gain Flatness (MAX4190)
    • 30MHz -0.1dB Gain Flatness (MAX4189)
    • Differential Gain/Phase Errors 0.03%/0.05° (MAX4188)
  • Low-Power Disable Mode
    • Inputs Isolated, Outputs Placed in High-Z
    • Supply Current Reduced to 450µA per Amplifier
  • Fast Settling Time of 22ns to 0.1%
  • Low Distortion
    • 70dB SFDR (fc = 5MHz, VO = 2Vp-p, MAX4188)
  • Available in Space-Saving Packages
    • 16-Pin QSOP (MAX4188/MAX4189)
    • 8-Pin µMAX (MAX4190)

Applications/Uses

  • High-Definition Surveillance Video
  • High-Speed Analog-to-Digital Buffers
  • High-Speed Signal Processing
  • High-Speed Switching/Multiplexing
  • Portable Battery-Powered Video/Multimedia Systems
  • RGB Distribution Amplifiers

Simplified Block Diagram

MAX4188, MAX4189, MAX4190: Pin Configuration MAX4188, MAX4189, MAX4190: Pin Configuration Zoom icon

Technical Docs

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Parameters

Key Features

  • Low Supply Current: 1.5mA per Amplifier
  • Fast Enable/Disable Times: 120ns/35ns
  • Very Low Switching Transient: 45mVp-p
  • High Speed
    • 200MHz -3dB Small-Signal Bandwidth (MAX4188, AVCL ≥ +2)
    • 250MHz -3dB Small-Signal Bandwidth (MAX4189, AVCL ≥ +1)
    • 185MHz -3dB Small-Signal Bandwidth (MAX4190, AVCL ≥ +2)
  • High Slew Rate
    • 350V/µs (MAX4188, AVCL ≥ +2)
    • 175V/µs (MAX4189, AVCL ≥ +1)
  • Excellent Video Specifications
    • 85MHz -0.1dB Gain Flatness (MAX4190)
    • 30MHz -0.1dB Gain Flatness (MAX4189)
    • Differential Gain/Phase Errors 0.03%/0.05° (MAX4188)
  • Low-Power Disable Mode
    • Inputs Isolated, Outputs Placed in High-Z
    • Supply Current Reduced to 450µA per Amplifier
  • Fast Settling Time of 22ns to 0.1%
  • Low Distortion
    • 70dB SFDR (fc = 5MHz, VO = 2Vp-p, MAX4188)
  • Available in Space-Saving Packages
    • 16-Pin QSOP (MAX4188/MAX4189)
    • 8-Pin µMAX (MAX4190)

Applications/Uses

  • High-Definition Surveillance Video
  • High-Speed Analog-to-Digital Buffers
  • High-Speed Signal Processing
  • High-Speed Switching/Multiplexing
  • Portable Battery-Powered Video/Multimedia Systems
  • RGB Distribution Amplifiers

Description

The MAX4188/MAX4189/MAX4190 are low-power, current-feedback video amplifiers featuring fast disable/ enable times and low switching transients. The triple MAX4188 and the single MAX4190 are optimized for applications with closed-loop gains of +2V/V (6dB) or greater and provide a -3dB bandwidth of 200MHz and 185MHz, respectively. The triple MAX4189 is optimized for closed-loop applications with gains of +1V/V (0dB) or greater and provides a 250MHz -3dB bandwidth. These amplifiers feature 0.1dB gain flatness up to 80MHz with differential gain and phase errors of 0.03% and 0.05°. These features make the MAX4188 family ideal for video applications.

The MAX4188/MAX4189/MAX4190 operate from a +5V single supply or from ±2.25V to ±5.5V dual supplies. These amplifiers consume only 1.5mA per amplifier and are capable of delivering ±55mA of output current, making them ideal for portable and battery-powered equipment.

The MAX4188/MAX4189/MAX4190 have a high-speed disable/enable mode that isolates the inputs, places the outputs in a high-impedance state, and reduces the supply current to 450µA per amplifier. Each amplifier can be disabled independently. High off isolation, low switching transient, and fast enable/disable times (120ns/35ns) allow these amplifiers to be used in a wide range of multiplexer applications. A settling time of 22ns to 0.1%, a slew rate of up to 350V/µs, and low distortion make these devices useful in many generalpurpose, high-speed applications.

The MAX4188/MAX4189 are available in a tiny 16-pin QSOP package, and the MAX4190 is available in a space-saving 8-pin µMAX® package.

Simplified Block Diagram

MAX4188, MAX4189, MAX4190: Pin Configuration MAX4188, MAX4189, MAX4190: Pin Configuration 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