I need some help regarding the simulation model of INA333.
i need to make a PCB design of my circuit which is using INA333. I have made my simulation in TINA-TI simulation software. Now, the thing is that I want a PCB Design for which I will have to use PSpice A/D in OrCAD. There is a Text Document "Instrumentation amplifier SPICE MACROMODEL" available for PSpice at the www.ti.com website. But I have been trying and am not able to run that *.txt file in the PSpice A/D software. Can anybody please help me on that. I am not very used to using PSpice/OrCAD =(
Which version of Pspice/OrCad do you use? Is it 15.7 and above?
Well yeah its above 15.7 , it is the 16.0 version. I cant really figure out how to make it in OrCAD ., Im even finding it hard to find the footprints/dimensions for the INA333 IC
I am not an expert in PCB usage of OrCad, but if I understand correctly basically you requesteda test bench of INA333 in OrCad/Pspice so that you can run simulation on it. Am I right?
Or do you actually need the footprint/dimensions of INA333 so that you can draw layout on OrCad PCB tools?
If it is the former, we can provide it. If it is the latter, I have to find somebody that knows the answer to this.
Yeah thats exactly what I requested , the former one. The latter issue I mentioned regarding the footprints/dimensions of INA333, is also some thing I need help with. It would be really kind of you if you are able to help.
I worked on the test benches today and will be posting them most likely tomorrow.
usually put the dimension/footprint for PCB layout purposes on our datasheet.
instance if you go into our datasheet of INA333: http://focus.ti.com/lit/ds/symlink/ina333.pdf
to 24.. it discusses about the details of dimension/footprint.
I am not
sure if the answer above meets your need. If you need something more specific,
can you tell us what specific information you need?
Oh okay I was trying understand it from pages 19 to 24 earlier today. I found it a bit confusing, but I am trying to figure out, since am a bit new to OrCAD 16.0.
I will work on it the next day as well, so ill tell you if i may need anything more specific on that. And thankyou very much regarding the test benches, hope to receive it from you soon =)
thanks again Herman!
Attached is the .zip; it includes all the necessary files so that you can just click and run. We will be releasing also this .zip file into our official INA333 product folder
website just in case you need it in the future.
You mentioned that you're new to OrCAD 16.0, so I am not quite sure if you happen to know how
to maneuver around the environment. But just in case you don't use OrCad 16 on regularly basis:
1. After you extract the .zip into certain folder, double click on the .opj file
2.To run simulation, simply choose one of the Simulation Profiles such as sim_INA333-ac.
3. Right click on the sim_INA333-ac and choose "Make Active". Then Right click again and choose "Simulate Selected Profile(s)"
The schematic obviously located on the .\ina333.dsn. You can expand this by clicking on the "+" sign and again "+" sign on
sim_INA333 for instance. Then double click on PAGE1 to see the schematic.
I attached also basic Pspice Tutorial just in case you need it. In this tutorial, it explains the basic of running simulation such as simple RC filter and also
the basic of exporting a netlist into symbol view so that one can run simulation with it.
1854.INA333_PSPICE_AIO_02AUG2010.ZIP0724.PSpice Tutorial for Customer.doc
Sorry for the late reply. i just read ur message. I'll follow your instructions and let you know. Thank you so much Herman, you are so kind.
yeah .. it was all running perfectly fine..
Now,the "PCB Symbols/Footprints" are not there at INA333 webpage on www.ti.com. Also, I have been analysing the Datasheet of INA333 but its not too clear on the dimensions of the component.
Are you using the MSOP or SON package? Drawings for both package types are in the product folder. I'll have to check and see if we already have footprints for those packages in OrCAD format. Pretty sure we don't have a schematic symbol for the INA333, but if you have the footprint you can build your own symbol and connect the two - and if we don't have the footprint, you can put one together from the drawings we have on the website.
I have made a footprint using the dimensions given at page number 20 (of the data sheet of INA333) in OrCAD Layout
Great! That's the drawing for the MSOP package.
Let us know if there's anything further we can do.
OOhh yeah it is MSOP =) Thanks bro i'll let you know!
Can anybody tell me if there is any way I can get an output voltage of 3.3 V at Vout with a "Single Supply" of 3.6V at V+ , and an Input "Vin +" of 10 to 15 mV (coming from an EMG sensor). The input signal can be made to be a sinusoidal signal of 10mV.
The input signal has to be analog.. please note that.
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