1. Products
  2. Switches and Multiplexers
  3. Analog Switches Multiplexers
  4. Dual-Supply Analog Switches and Multiplexers
  5. ADG798


Features and Benefits

  • Download ADG798-KGD Data Sheet. Available as Known Good and fully guaranteed to data sheet specifications.
  • Extreme high temperature operation
  • Specified temperature range
    • −55°C to +210°C (16-lead FLATPACK)
    • −55°C to +175°C (16-lead TSSOP)
  • 3.0 V to 5.5 V single supply
  • ±2.5 V dual supply
  • 10 Ω on resistance, maximum
  • 2 Ω on resistance flatness, maximum
  • 12 ns switching times
  • Single 8:1 multiplexer
  • Low power consumption
  • TTL-/CMOS-compatible inputs

Product Details

The ADG798 is a low voltage, CMOS, analog multiplexer designed to operate at very high temperatures up to 210°C. The ADG798 switches one of eight inputs (S1 to S8) to a common output, D, as determined by the 3-bit binary address lines A0, A1, and A2. An EN input on the device is used to enable or disable the device. When the device is disabled, all channels are switched off.

The ADG798 features low power consumption and a 3.3 V to 5.5 V operating supply range. All channels exhibit break-before-make switching action, preventing momentary shorting when switching channels. These switches are designed with an enhanced submicron process that provides low power dissipation, high switching speed and very low on resistance.

The on resistance (RON) is a maximum of 10 Ω and is closely matched between switches and very flat over the full signal range. The ADG798 operates equally well as either a multiplexer or a demultiplexer and has an input signal range that extends to the supplies.

This mux is available in a 16-lead ceramic flat package (FLATPACK) and a 16-lead ceramic flat package with reverse formed gullwing leads (FLATPACK_RF). Both of the flat packages have an operating temperature range of −55°C to +210°C. A 16-lead TSSOP package is also available that has an operating temperature range of −55°C to +175°C. All packages are designed for robustness at extreme temperatures, and are qualified for 1000 hours of continuous operation at the maximum temperature rating.

The ADG798 is a member of a growing series of high temperature qualified products offered by Analog Devices, Inc. For a complete selection table of available high temperature products, see the high temperature product list and qualification data available at http://www.analog.com/hightemp.

Product Highlight

  1. Single-/Dual-Supply Operation.
    The ADG798 is fully specified and guaranteed with 3.3 V and 5 V single-supply rails and ±2.5 V dual-supply rails.
  2. Low RON.
    The RON of the ADG798 is specified at 5 Ω typical at 210°C.
  3. Low power consumption.
    The power consumption of the ADG798 is specified at <0.01 μW.
  4.  Guaranteed Break-Before-Make Switching Action.


  • Downhole drilling and instrumentation
  • Avionics
  • Heavy industrial
  • High temperature environments

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (2)

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.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
ADG798-KGD-WP Material Declaration Reliability Data CHIPS OR DIE
ADG798HFRZ Material Declaration Reliability Data 16-Lead Flatpak Reversed Form Gullwing Leads
ADG798HFZ Material Declaration Reliability Data 16-Lead FlatPack
ADG798HRUZ Material Declaration Reliability Data 16-Lead TSSOP
Wafer Fabrication Data

Sample & Buy

Ordering FAQs

See our Ordering FAQs for answers to questions about online orders, payment options and more.


Buy Now Pricing

(**) Displayed Buy Now Price and Price Range is based on small quantity orders.


List Pricing

(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Lead Times

Please see the latest communication from our CCO regarding lead times.



A Sample link will be shown above, next to the part, only for parts that are included in our sample program. Selecting the Sample button will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Price Table Help


Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.