I'd like to know how can I model the output references (Vref10, Vref5, Vref2.5 and VrefBG) according to the INA125's single power supply (2.7V~3.6V, for example).
This modelation will be able to perform a fast calibration of my system.
Hello Daniel,There is a PSPICE model available for the INA125 located in the device's product folder (http://www.ti.com/product/ina125). The model was developed 15 years ago so I am unaware of which datasheet parameters it accurately models. Looking at the *.mod file, however, shows nodes for each of the Vref pins. At this time there are no plans to update this model.I hope this helps!
Precision Analog Applications
I try Pspice model with full version 2001 of pspice, and it doesen' work. Can you verify, please?
I typically use TINA SPICE. Therefore I created a TINA macromodel using the SPICE file and created a simple test circut. It is attached. Performing a DC analysis shows that the reference voltages are present. The only caveat is that it appears as though the polarity of the input is invertered as can be seen by a DC simulation.
I hope this helps.
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.