Can anyone help me to write spice code to simulate instrumental amplifier INA128?
I have INA128 subcircuit code but ı don't know how ı can write it.

 

hi ayrat,
Unzip this file, it has the IN128 , sub, asy and a test asc file.
Keep them in the same folder,

If you post your asc files we can help.
E

 

hi ayrat,
Unzip this file, it has the IN128 , sub, asy and a test asc file.
Keep them in the same folder,

If you post your asc files we can help.
E

This is the subcircuit file of INA128.
I want to add Rg 5k, Vsupply 15V Vin 1V.

 

hi,
That Lib is the same Texas Inst model data that I have included as a sub file in the zip I posted for you.??
If you change the internal values it will not be a standard IN128 model.

Have you tried running the asc file I posted.?
E

EDIT:
The IN128 is designed for dual supply operation.
50K for the external Rg will be a Gain of 2
Please explain what you want to do for the IN128 project.

 

hi,
That Lib is the same Texas Inst model data that I have included as a sub file in the zip I posted for you.??
If you change the internal values it will not be a standard IN128 model.

Have you tried running the asc file I posted.?
E

EDIT:
The IN128 is designed for dual supply operation.
50K for the external Rg will be a Gain of 2
Please explain what you want to do for the IN128 project.

How can ı run asc file in Pspice ?
it allows for cir files simulation :S i didn't understand sorry.

How can ı run asc file in Pspice ?
it allows for cir files simulation :S i didn't understand sorry.

I want to give 1V input and ı want to see 10V as output voltage so I choose Rg 5k to have 10 gain

 

hi,
The datasheet says 5.62K 1% for a gain of 10.
What are the supply voltages to your IN128.?

 

hi,
The datasheet says 5.62K 1% for a gain of 10.
What are the supply voltages to your IN128.?

15V

 

Do you have a -15V as well as a +15V supply.?
The IN128 requires +/-Voltage supplies.

 

Do you have a -15V as well as a +15V supply.?
The IN128 requires +/-Voltage supplies.

Yes +15 -15

 

hi,
I do not use PSpice.
This is a LTSpice simulation, using your values.
E

 

Can you send me this simulation file

How did you add Ina128 , library doesnt include this

 

hi,
The IN128 'sub' file is in the zip file I posted.

E

 

How can ı add this component to th lib ?I add files that you send but still there is an error

 

hi,
The symbol in LTSpice is the 'asy' file in that zip.
I do not use PSpice, but other members may help you with that problem.
E

 

hi,
Post your asc file here and I will compare it with mine that works.

What was the error it reported.?
E

 

hi,
Post your asc file here and I will compare it with mine that works.

What was the error it reported.?
E

I tried your file ina128 part is empty in the program

 

Hi,
It is not empty, this is the sub file, I have changed the extension to txt so that you read the data

 

Hi avractgc,
As Eric said, post your .asc file and tell us exactly what error is reported. You need to help us to help you, or else everyone is wasting their time.

 

Hi,
It is not empty, this is the sub file, I have changed the extension to txt so that you read the data

As i said i use your file but ina128 component is not in the library so empty

 

Hi avractgc,
As Eric said, post your .asc file and tell us exactly what error is reported. You need to help us to help you, or else everyone is wasting their time.

Actually there is no error but library doesnt include ina128 component so i should apply it t the lib files.İ couldnt do it