UAF42: TINA simulation: circuit error

Shibuya

Part Number: UAF42

Hello

My customer try to simulate attached circuit but unable, because circuit error is reported. Could you tell what is wrong on the circuit?

BPF.TSC

over 6 years ago

0 kai klaas69 over 6 years ago

Guru 140200 points

Hi Shibuya,

with the UAF42E model (instead of UAF42 model) your simulation works for me:

shibuya.TSC

Kai

0 Thomas Kuehl over 6 years ago in reply to kai klaas69

TI__Guru* 93105 points

Hello Kai,

That is a good find! We have had customers who have had problems getting the UAF42 model to simulate and it appears to be the version Shibuya used.

I see where the UAF42E resides in the Tina SPICE Macros > Other Components pull down, which seems correct. However, it looks like the UAF42 version is listed under the SPICE Macros > Operational Amplifiers pull down, which isn't correct.

The "E" stands for enhanced version and those models tend to be a little more sophisticated than the standard model and probably was better devised. If I get time I'll check the syntax of the two models and see what is different.

Thanks for your help.

Regards, Thomas
Precision Amplifiers Applications Engineering

0 kai klaas69 over 6 years ago in reply to Thomas Kuehl

Guru 140200 points

Dear Thomas,

I found the UAF42E model by accident, shortly before giving up making Shibuyas simulation to work... :-)

Kai

0 Parag chourey over 6 years ago in reply to kai klaas69

Intellectual 520 points

Hi kai sir,

I have also tried the UAF42E model with shibuya's simulation but couldn't got the same response as yours. The file is attached here. Can you tell me where i am going wrong. Also i have confusion in selecting band pass cut frequencies. How can i adjust the frequency band in this circuit as there is no particular example is given in data sheet.

5822.UAF42E Bandpass filter.TSC