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Active filter simulation does not agree with breadboard hardware

Question asked by hib on Sep 1, 2016
Latest reply on Sep 2, 2016 by hib

I designed an active bandpass filter using the analog devices filter designer.
I simulated it in a spice program (NI multisim). Multisim results as far as gain agreed very well with the AD filter designer. I used the AD827 dual op amp with 50 MHz GBW. My center frequency is 125 kHz and the gain is 25 dB.

However when I built the circuit with hardware components the gain is much less on my breadboard (6 db).

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