AD8174 4 Channel Buffered, 250 MHz, 10 ns Switching Multiplexer w/Amplifier

The AD8170(2:1) and AD8174(4:1) are very high speed buffered multiplexers. These multiplexers offer an internal current feedback output amplifier whose gain can be programmed via external resistors and is capable of delivering 50 mA of output current. They offer -3dB signal bandwidth of 250 MHz and slew rate of greater than than 1000 V/µs. Additionally, the AD8170 and AD8174 have excellent video specifications with low differential gain and differential phase error of 0.02% and 0.05° and 0.1 dB flatness out to 85 MHz. With a low 70 dB of crosstalk and better than 82 dB isolation, these devices are useful in many high speed applications. These are low power devices consuming only 9.7 mA from a ±5 V supply.

The AD8174 offers a high speed disable feature allowing the output to be put into a high impedance state for cascading stages so that the off channels do not load the output bus. Additionally, the AD8174 can be shut down (SD) when not in use to minimize power consumption (IS = 1.5 mA). These products will be offered in 8-lead and 14-lead PDIP and SOIC packages.

An evaluation board is available for this product and may be ordered using the following product number: AD8170-EB and AD8174-EB. Schematic and layout for this evaluation board is contained in the product datasheet.

Features and Benefits
  • Fully Buffered Inputs and Outputs
  • Fast Channel Switching: 10 ns
  • Internal Current Feedback Output Amplifier
    High Output Drive: 50 mA
    Flexible Gain Setting via External Resistor(s)
  • High Speed
    250 MHz Bandwidth, G = +2
    1000 V/µs Slew Rate
    Fast Settling Time of 15 ns to 0.1%
  • Low Power: < 10 mA
  • Excellent Video Specifications
    (RL = 150 O, G = +2)
    Gain Flatness of 0.1 dB Beyond 80 MHz
    0.02% Differential Gain Error
    0.05° Differential Phase Error
  • Low Crosstalk of -78 dB @ 5 MHz
  • High Disable Isolation of -88 dB @ 5 MHz
  • High Shutdown Isolation of -92 dB @ 5 MHz
  • Low Cost
  • Switches & Multiplexers
    Data Sheets
    Documentnote
    AD8170/AD8174: 250 MHz, 10 ns Switching Multiplexers w/Amplifier Data Sheet (Rev. 0)PDF 474 kB
    Application Notes
    Documentnote
    AN-1024: How to Calculate the Settling Time and Sampling Rate of a Multiplexer (Rev. 0)PDF 210 kB
    User Guides
    Documentnote
    UG-819: Evaluation Board for the AD8174 250 MHz, 10 ns Switching Multiplexer with AmplifierPDF 345.55 K
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    AD8174ANZ Last Time Buy14 ld PDIPOTH 25-40 to 85C6.045.13Y
    AD8174AR Production14 ld SOICOTH 56-40 to 85C5.034.28N
    AD8174ARZ Production14 ld SOICOTH 56-40 to 85C4.363.7Y
    AD8174ARZ-R7 Production14 ld SOICREEL 750-40 to 85C4.363.7Y
    AD8174ARZ-RL Production14 ld SOICREEL 2500-40 to 85C4.363.7Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    AD8174-EBZEvaluation Board for 14 Lead SOIC18.25Y
    Reference Materials
    AD8170/AD8174: 250 MHz, 10 ns Switching Multiplexers w/Amplifier Data Sheet (Rev. 0) ad8170
    AN-1024: 如何计算多路复用器的建立时间和采样速率 (Rev. 0) adg904
    AN-1024: How to Calculate the Settling Time and Sampling Rate of a Multiplexer (Rev. 0) adg904
    UG-819: Evaluation Board for the AD8174 250 MHz, 10 ns Switching Multiplexer with Amplifier ad8174
    High Speed Switches ad75019
    CMOS Switches Offer High Performance in Low Power, Wideband Applications ad75019