TINA Resistor ppm setting

Daniel Sala

Other Parts Discussed in Thread: TINA-TI

Hi,

How do I set the resistor parameters for a standard +100ppm/ºC or -1300ppm/ºC resistor in TINA please?

I understand it's the linear temperature coefficient field, but I'm not sure/want to check that writing 0.025 or 25m means +250ppm with regard to the input value 1/C.

Also, for a reasonably/sufficiently realistic interpretation of what would occur using real components over a specific
temperature range, can I leave the quadratic and exponential fields as "0"? The help says you can leave the latter as "0."

(Aside, is there a way of modifying the settings to get the DC results table to show "trivialities" like 1.007V, rather than
1V, so long as the value doesn't exceed 1.999V, please?)

Thanks.

over 8 years ago

0 Britt Brooks - Online Design Tools over 8 years ago

TI__Mastermind 41310 points

Daniel,

There are many articles on how to use temperature coefficients on resistors. This is not unique to TINA-TI.

Most of the time (for ppm/C), you will use the TC1 variable (The linear term or 1/C term). The quadratic and exponential terms do not need to be used unless the resistor you are using shows this kind of behavior.

To achieve a 100ppm/deg C, you would set TC1=1.0e-4 or 100u if that is easier to remember.