Tool/software: TINA-TI or Spice Models
Hello,
i am trying to simulate the THS3202 frequency response, as given bellow in the datasheet picture.
Supply set +/- 5V
I set the gain resistors to be 2.
Load resistor 100ohm
The Signal is 0.25Vpeak, so at the output of the opamp i have 1 Vpp
When i do a sweep betwen 10hz and 3GHZ, i get the frequency response bellow, which is diferent from the datasheet. Why?
I am missing something?
thank you.
Hi ,
First of all large signal gain cannot be verified by AC analysis like this in TINA-TI.
This is because as we place the VG voltage source and trigger an AC analysis the tool considers it to be a small signal 1V AC input . It is how the tool works.
So if you are interested to study the large signal you have to see the attestations/gain in transient simulation, by giving sine wave input of proper amplitude and frequency.
You have to see the gain/attenuation at applied interested frequency points in transient and try to see how the nature is coming by drawing bode plot with those output points.
