ADG438F
High Performance, 8-Channel, Fault-Protected Analog Multiplexer
Show More
Not the part you were looking for?
Ask a Question
Submit your question below and we will return the best answer from ADI’s knowledge database:
Search
Other places you can find help
Support
Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.
Visit the ADI Support Page
Features
- All switches off with power supply off
- Analog Output of ON Channel Clamped within Power Supplies If an Overvoltage Occurs
- Latch-up proof construction
- Fault and Overvoltage Protection
(-40 V, + 55 V)
- Fast switching times
tON 250 ns max
tOFF150 ns max - Break-Before-Make Switching Action
- TTL and CMOS Compatible inputs
.svg?rev=fd385c90e2cf4716ae9a8c8d20e6b8e3&la=en&h=24&w=24&hash=A302DF48F94BAAA11877AF223F27157A){kind=icon}
The ADG438F and ADG439F are CMOS analog multiplexers, with the ADG438F comprising eight single channels and the ADG439F comprising four differential channels. These multiplexers provide fault protection. Using a series n-channel, p-channel, and n-channel MOSFET structure, both device and signal source protection is provided in the event of an overvoltage or power loss. The multiplexer can withstand continuous overvoltage inputs from −40 V to +55 V. During fault conditions with power supplies off, the multiplexer input (or output) appears as an open circuit and only a few nanoamperes of leakage current flows. This protects not only the multiplexer and the circuitry driven by the multiplexer, but also protects the sensors or signal sources which drive the multiplexer.
The ADG438F switches one of eight inputs to a common output as determined by the 3-bit binary address lines, A0, A1, and A2. The ADG439F switches one of four differential inputs to a common differential output as determined by the 2-bit binary address lines, A0 and A1. An EN input on each device is used to enable or disable the device. When disabled, all channels are switched off.
PRODUCT HIGHLIGHTS
- Fault Protection. The ADG438F and ADG439F can with-stand continuous voltage inputs up to −40 V or +55 V. When a fault occurs due to the power supplies being turned off, all the channels are turned off and only a leakage current of a few nanoamperes flows.
- On channel saturates while fault exists.
- Low RON.
- Fast Switching Times.
- Break-Before-Make Switching. Switches are guaranteed break-before-make so that input signals are protected against momentary shorting.
- Trench Isolation Eliminates Latch-Up. A dielectric trench separates the p-channel and n-channel MOSFETs thereby preventing latch-up.
- Improved Off Isolation. Trench isolation enhances the channel-to-channel isolation of the ADG438F / ADG439F.
APPLICATIONS
- Data acquisition systems
- Industrial and process control systems
- Avionics test equipment
- Signal routing between systems
- High reliability control systems
Ask a Question
Submit your question below and we will return the best answer from ADI’s knowledge database:
Search
Other places you can find help
Support
Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.
Visit the ADI Support Page
{{modalTitle}}
{{modalDescription}}
{{dropdownTitle}}
- {{defaultSelectedText}} {{#each projectNames}}
- {{name}} {{/each}} {{#if newProjectText}}
-
{{newProjectText}}
{{/if}}
{{newProjectTitle}}
{{projectNameErrorText}}
ADG438F
Documentation
Filters
1 Applied
-
All
-
Technical Articles
-
Data Sheet
-
Application Note
-
All
-
English
-
Chinese
-
Japanese
Data Sheet
1
Technical Articles
6
URL
URL
URL
URL
HTML
HTML
Application Note
2
359 kB
Documentation
Data Sheet 1
Application Note 1
Technical Articles 3
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 |
|---|---|---|---|
| ADG438FBNZ |
16-Lead PDIP
|
|
|
| ADG438FBRZ |
16-Lead SOIC
|
|
|
| ADG438FBRZ-REEL |
16-Lead SOIC
|
|
- ADG438FBNZ
- Pin/Package Drawing
-
16-Lead PDIP
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- ADG438FBRZ
- Pin/Package Drawing
-
16-Lead SOIC
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- ADG438FBRZ-REEL
- Pin/Package Drawing
-
16-Lead SOIC
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
Filter by Model
Part Models
Product Lifecycle
PCN
Mar 29, 2021
- 21_0033
Assembly Site Transfer for 14/16L 300_MIL PDIP to Cirtek
Jul 12, 2011
- 11_0087
Re-design and Wafer Fabrication transfer of the ADG438F/ADG439F
ADG438FBNZ
PRODUCTION
ADG438FBRZ
PRODUCTION
ADG438FBRZ-REEL
PRODUCTION
Aug 19, 2009
- 07_0024
Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad
ADG438FBNZ
PRODUCTION
Oct 5, 2010
- 10_0146
Halogen Free Material Change for 14/16L SOIC_N Products
ADG438FBRZ
PRODUCTION
ADG438FBRZ-REEL
PRODUCTION
Dec 20, 2011
- 10_0139
Obsolesence notice for some models of the ADG508F, ADG509F and ADG528F
ADG438FBNZ
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
Mar 29, 2021
- 21_0033
Assembly Site Transfer for 14/16L 300_MIL PDIP to Cirtek
Jul 12, 2011
- 11_0087
Re-design and Wafer Fabrication transfer of the ADG438F/ADG439F
ADG438FBNZ
PRODUCTION
ADG438FBRZ
PRODUCTION
ADG438FBRZ-REEL
PRODUCTION
Aug 19, 2009
- 07_0024
Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad
ADG438FBNZ
PRODUCTION
Oct 5, 2010
- 10_0146
Halogen Free Material Change for 14/16L SOIC_N Products
ADG438FBRZ
PRODUCTION
ADG438FBRZ-REEL
PRODUCTION
Dec 20, 2011
- 10_0139
Obsolesence notice for some models of the ADG508F, ADG509F and ADG528F
