ADG794

Low Voltage, 300 MHz Quad 2:1 Mux Analog HDTV Audio/Video Switch

Data Sheet
Rev. B
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Datasheet
Data Sheet Rev. B
Circuit Note
CN | JP 1 View All

Overview

Features and Benefits

  • Bandwidth: 300 MHz
  • Low Insertion Loss and on Resistance: 5 Ω typical
  • On Resistance Flatness: 0.68 Ω Typical
  • Single 3 V/5 V Supply Operation
  • Low Quiescent Supply Current: 1 nA Typical
  • TTL/CMOS Compatible
  • Fast switching times: 
    • tON, 7 ns
    tOFF, 5 ns
  • ESD protection
    2 kV human body model (HBM)
    200 V machine model (MM)
    1 kV field-induced charged device model (FICDM)

Product Details

The ADG794 is a monolithic CMOS device comprising four 2:1 multiplexer/demultiplexers with high impedance outputs. The CMOS process provides low power dissipation yet gives high switching speed and low on resistance. The on resistance variation is typically less than 1.2 Ω over the input signal range.

The bandwidth of the ADG794 is typically 300 MHz and this, coupled with low distortion (typically 0.68%), makes the part suitable for switching analog audio/video signals.

The ADG794 operates from a single 3.3 V/5 V supply and is TTL logic compatible. The switches are controlled by the logic inputs IN and EN as shown in Table 4. The EN pin allows the user to disable all switches.

These switches conduct equally well in both directions when on. In the off condition, signal levels up to the supplies are blocked. The ADG794 switches exhibit break-before-make switching action.

The ADG794 is available in a 16-pin QSOP package.

Product Highlights

  1. Wide bandwidth: 300 MHz.
  2. Ultralow power dissipation.
  3. Crosstalk: −70 dB (typical) at 10 MHz.
  4. Off isolation: −65 dB (typical) at 10 MHz.
  5. ESD protection tested as per ESD Association Standards:
    2 kV HBM (ANSI/ESD STM5.1-2001)
    200 V MM (ANSI/ESD STM5.2-1999)
    1 kV FICDM (ANSI/ESD STM5.3.1-1999)

Applications

  • RGB switches
  • HDTV
  • DVD-R
  • Audio/video switches

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At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Documentation

Reference Designs (1)

Reference Materials

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

ADG794 Material Declaration
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PCN-PDN Information

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  • ADG794BRQZ Production
  • ADG794BRQZ-500RL7 Production
  • ADG794BRQZ-REEL Production
  • ADG794BRQZ-REEL7 Production

Support & Discussions

ADG794 Discussions

RE: Other NMOS switches like ADG774A or ADG794
24 week(s) ago in Switches/Multiplexers
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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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