Issues with AD620 using proteus

[asKnownas02]

Hello, I am new to the community and I'm having an issue while simulating a simple amplifying circuit with an instrumental amplifier (AD620), I am using Proteus.

I wanted my gain to be4, so I calculated Rg an it is: 16.46k. However since I have to do this circuit in real life, I tried to use the closest commercial resistor, which is 15k.

so when I try to simulate the circuit using the 15k resistor the simulation show these errors

• View attachment AUDIO.zip

 

[E-design]

It appears that it has a problem with the output node of the amplifier when the gain setting resistor is connected. When the resistor is removed it simulates. So there may be a problem with the model itself.

 

[asKnownas02]

What do you recommend to do in this case?

 

[E-design]

It appears to work when using the AD623. It failed with a AD621.