ADG798
High Temperature (up to 210°C), Low Voltage 8-Channel Multiplexer
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Features
- 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
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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
- 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. - Low RON.
The RON of the ADG798 is specified at 5 Ω typical at 210°C. - Low power consumption.
The power consumption of the ADG798 is specified at <0.01 μW. - Guaranteed Break-Before-Make Switching Action.
Applications
- Downhole drilling and instrumentation
- Avionics
- Heavy industrial
- High temperature environments
Ask a Question
Submit your question below and we will return the best answer from ADI’s knowledge database:
Search
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Support
Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.
Visit the ADI Support Page
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ADG798
Documentation
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Data Sheet
4
ADG798: High Temperature, Low Voltage 8-Channel Multiplexer Data Sheet (Rev.A)
User Guide
1
Documentation
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 Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADG798-KGD-WP | CHIPS OR DIE |
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| ADG798HFRZ |
16-Lead Flatpak Reversed Form Gullwing Leads
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| ADG798HFZ |
16-Lead FlatPack
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| ADG798HRUZ |
16-Lead TSSOP
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- ADG798-KGD-WP
- Pin/Package Drawing
- CHIPS OR DIE
- Documentation
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
- ADG798HFRZ
- Pin/Package Drawing
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16-Lead Flatpak Reversed Form Gullwing Leads
- Documentation
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
- ADG798HFZ
- Pin/Package Drawing
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16-Lead FlatPack
- Documentation
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
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SamacSys
- ADG798HRUZ
- Pin/Package Drawing
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16-Lead TSSOP
- Documentation
-
HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
Software & Part Ecosystem
Evaluation Kits 2
EV-HT-200CDAQ1
200°C High Temperature Data Acquisition and Control System Reference Design
Features and Benefits
- Complete high temperature data acquisition reference platform with all components and assembly materials rated to at least 200°C
- 10 channels of high precision analog to digital conversion
- (2) Direct channels, 400ksps max
- (8) Multiplexed channels, 16ksps max (including temp sensor)
- Multiple GPIO for external control and optional external triggering
- Complete software package including
- Optimized firmware with RTOS for multiple modes of data acquisition
- PC Host software for control, viewing and logging data
- Source code available for all software
- Form factor compatible with downhole oil/gas exploration instrumentation
- Kit includes analog and digital/power breakout boards for rapid evaluation
Product Detail
Resources
EVAL-ADG798
ADG798 Evaluation Board
Product Detail
The EVAL-ADG798EB1Z is the evaluation board for the ADG798 high temperature 8:1 multiplexer. The entire board assembly is constructed with high temperature compliant materials and is suitable for short duration device evaluation up to 210°C.
The ADG798 is soldered to the center of the evaluation board, and headers are provided to connect to each of the source and drain pins. A 4-pin header powers the device and provides a user defined digital logic supply voltage.
Full specifications on the ADG798 are available in the ADG798 data sheet, which should be consulted in conjunction with user guide UG-1039 when using the evaluation board.
