AD8253 G=1

[kape89]

Hi
I use Multisim 12.0
I need to simulate the AD8253 Programmable Gain Instrumentation Amplifier with GAIN=1.
My problem is the GAIN always 1000 according to the oscilloscope in the simulation.
My settings are ~WR=-Vcc, A0=0V, A1=0V.
Data sheet:
http://www.analog.com/static/imported-files/data_sheets/AD8253.pdf

Why does not work in the simulation?

[Daveae]

Hi Kape89,

AD8253 it's a little bit specific model, you can actually download SPICE model from Analog Devices pages, for your model:

http://www.analog.com/en/specialty-amplifiers/instrumentation-amplifiers/ad8253/products/tools-softw...

and create your own model in Multisim as follows

http://www.ni.com/white-paper/3173/en

Here you can find another example, how to add a model

http://ez.analog.com/message/18159#18159

Try to check the links above, I hope it will help you.

Bye!

David 🙂