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

Product Details

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.


  • 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

Functional Block Diagram for AD8174


Title Content Type File Type
AD8170/AD8174: 250 MHz, 10 ns Switching Multiplexers w/Amplifier Data Sheet (Rev 0, 10/1996) (pdf, 474 kB) Data Sheets PDF
AN-1024: How to Calculate the Settling Time and Sampling Rate of a Multiplexer  (pdf, 210 kB) Application Notes PDF
Data-acquisition system uses fault protection
By Catherine Redmond, Analog Devices, Inc. (EDN, 4/15/2004)
Technical Articles HTML
CMOS Switches Offer High Performance in Low Power, Wideband Applications  (pdf, 320 kB)
by Theresa Corrigan and Ray Goggin, Analog Devices, Inc. (High Frequency Electronics, February 2004)
Technical Articles PDF
Enhanced Multiplexing for MEMS Optical Cross Connects
by James Caffrey (Fiberoptic Product News, 8/2003)
Technical Articles HTML
Buffered Multiplexers for Video Applications
(Analog Dialogue, Vol. 30, No. 3, 1996)
Analog Dialogue HTML
High Speed Switches  (pdf, 63 kB) Product Selection Guide PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

AD8174 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
AD8174ANZ Status: Production 14 ld PDIP 14 Ind Tube, 25 $5.25 $4.46 Y  Material Info PCN Purchase
AD8174AR Status: Production 14 ld SOIC 14 Ind Tube, 56 $4.66 $3.96 N  Material Info PCN Purchase
AD8174AR-REEL7 Status: Last Time Buy 14 ld SOIC 14 Ind Reel, 750 $4.66 $3.96 N  Material Info PCN/PDN Purchase
AD8174ARZ Status: Production 14 ld SOIC 14 Ind Tube, 56 $4.04 $3.43 Y  Material Info PCN Purchase Sample
AD8174ARZ-R7 Status: Production 14 ld SOIC 14 Ind Reel, 750 $4.04 $3.43 Y  Material Info PCN Purchase
AD8174ARZ-RL Status: Production 14 ld SOIC 14 Ind Reel, 2500 $4.04 $3.43 Y  Material Info PCN Purchase
Price Table Help

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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