Hello TI,
I've just got some INA333 and OPA333 samples from TI.
I made a circuit to test this, but I have a problem. I can not run signal anlyzer to see the bode plot of phase.
I hope you guys can help me with a problem.Please see attached file.
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Ground the pin-3 of the instrumentation amplifier(please read-http://e2e.ti.com/blogs_/archives/b/thesignal/archive/2012/03/27/instrumentation-amplifiers-avoiding-a-common-pitfall.aspx ).
When the reference pin of the instrumentation amplifier is connected to V2.5 in your simulation file, I am able to generate Bode plot(attached).
Are you sure that the impedance across the pin-5 and pin-6 of the instrumentation amplifier along with the parallel
capacitor C1 will result in proper feedback across the U2-OPA333?