Part Number: SN74LV4051A
Could you let us know how the on state resistance changes over the age of the part and with temperature?
If I were to calibrate my measurements, could I eliminate the on state resistance or would it change to much over its age/temperature?
Is there a particular device (or series of devices) with better performance than another? This is a 1:8 analog multiplexer.
Thank you, Keith
On state resistance will increase as temperature increases. You can see the level of variation in this spec based on the different Ron values in the datasheet at different temperatures. At 25 degree C the Ron is in the 38 to 180 ohm range but at 85 degree C it can increase up to 225 ohms.
Our newer 8:1 switch MUX508 has characterization data showing the Ron variation across temperature and voltage.
There is also an older 8:1 mux CD4051 that shows the variation across temperature and voltage.
The Ron will likely increase about 20-50% across temperature range for these types of products. Products with lower Ron with have less issue with the 20%-50% increase as temperature increase but not in an 8:1 configuration at this time.
Please let me know if you have additional questions or need more information.
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.