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General 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

特性 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

High-Definition Surveillance Video

High-Speed Switching/Multiplexing

Portable/Battery-Powered Video/Multimedia Systems

High-Speed Analog-to-Digital Buffers

Medical Imaging

High-Speed Signal Processing

Professional Cameras

CCD Imaging Systems

RGB Distribution Amplifiers