Precision Voltage-to-Frequency Converter,100 kHz Full-Scale, ±0.03% Non-Linearity

Precision Voltage-to-Frequency Converter,100 kHz Full-Scale, ±0.03% Non-Linearity from LM331 data sheet
I've stimulated it but it did not give any output....

 

[Lightium]

You might try a zip file. Not too many a rar here.

 

[danadak]

Winzip will open RAR, RAR will open Winzip.....

 

[Lightium]

I just got in, so gimme a min...

 

[Lightium]

I cleaned up your schematic and it sim's but I am not sure about your intended outcome.

 

[eTech]

Hi

The attached zip file contains "V-to-F Converter (1).asc". This version works.
The circuit needs a negative voltage to function, so it has been converted to a split supply.
The LM356 has a max supply of +/- 5V. So I reduced the supply to +/- 5V.
The original circuit is designed for a -10 full scale input, so you'll need a different op amp.

I circled the changes on the schematic.

 

[hamed_bayat]

Thank you for your help
But it gives this output on my system....

 

[eTech]

Thank you for your help
But it gives this output on my system....
View attachment 141570

It works on my system.
At any rate, its not the simulation. Its your circuit design.

 

[hamed_bayat]

This op-amp is recommended by the datasheet

 

[danadak]

Application Note 240 and Application Note C additional notes might be useful :

http://www.introni.it/pdf/Bob%20Pease%20Lab%20Notes%20Part%209.pdf

Regards, Dana.

 

[hamed_bayat]

It gives this message after running ....

 

[hamed_bayat]

It works on my system.
At any rate, its not the simulation. Its your circuit design.

View attachment 141576
It gives this message after running ....

 

[Lightium]

There is a problem with U3.

 

[Lightium]

Read these to solve your prob.

Quick Solutions to Solve SPICE Convergence Issues. - YouSpice

This article explains how to solve SPICE Convergence Issues for PSpice, or other versions such as XSPICE NGSPICE IsSPICE HSPICE.

www.youspice.com

http://www.intusoft.com/articles/converg.pdf

LTspice error: timestep too small

This is the error I see: This is my simulation command: What is the issue here?

electronics.stackexchange.com

 

[Lightium]

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