Four-Channel, Standard-Definition Video Filters

SD Video Filter Buffer with Improved Stop-Band Attenuation and 12kV ESD Protection

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The MAX11504/MAX11505 integrated filters offer four channels of 5th order filters for standard-definition video and include +6dB output buffers on each channel. These video filters are ideal for anti-aliasing and DAC smoothing in applications such as set-top boxes, security systems, digital video recorders (DVRs), DVD players, and personal video recorders.

The MAX11504/MAX11505 video inputs feature a transparent clamp compatible with AC- and DC-coupled input signals and allow DAC outputs to be directly coupled. The 5th order filters provide a bandwidth of 8.6MHz (typical). The MAX11504 offers a flat passband response on all channels. The MAX11505 offers a 0.8dB peaking passband response on Channel 1, resulting in a bandwidth of 8.9MHz (typical) and a flat passband response on all other channels.

Each channel includes an output buffer with a gain of +6dB capable of driving a full 2VP-P video signal into two standard 150Ω (75Ω back terminated) video loads. The buffers drive either AC- or DC-coupled loads and assure a blanking level below 1V after the back-match resistor.

The MAX11504/MAX11505 operate from a single +5V supply and are available in the 0°C to +70°C commercial temperature range. These devices are available in small 10-pin µMAX® packages.
MAX11504, MAX11505: Typical Operating Circuit MAX11504, MAX11505: Typical Operating Circuit Enlarge+

Key Features

  • Four-Channel 5th Order Filter for Standard-Definition Video
  • +6dB Output Buffers
  • Transparent Input Clamp
  • AC- or DC-Coupled Inputs
  • AC- or DC-Coupled Outputs
  • Output Buffers Can Drive Two Standard 150Ω Video Loads
  • 12kV HBM ESD Protection on Outputs
  • Flat Passband Response (MAX11504)
  • 0.8dB Peaking Passband Response on Channel 1 (MAX11505)
  • Single +5V Power Supply
  • Small 10-Pin µMAX Package


  • Digital Video Recorders
  • DVD Players
  • Personal Video Recorders
  • SDTV
  • Security Video Systems
  • Set-Top Boxes
  • Video On-Demand

Technical Documents

App Note 4287 Reconstructing Analog Video with the Maxim Video Filter Family
App Note 4186 Thermal Design Considerations for Video Filters

Quality and Environmental Data

Request Reliability Report for: MAX11505 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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