LM748 Spice Model

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gnsmith116
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Joined: Mon May 21, 2012 12:49 am
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LM748 Spice Model

Post by gnsmith116 »

Hi,

Can anyone point me to a spice model (using LMSpice) for the LM748 op amp? The simulation shows a reasonable waveform shape on VCA transistor collectors but the OP AMP output of the LM741 model that I am using only shows 1/2 cycle and I am wondering if it has to do with the model.

This is my first post - is there a way to attach files?

Thanks,

Greg
gnsmith116
Posts: 2
Joined: Mon May 21, 2012 12:49 am
Hometown: Corning
Favorite topic: Theremax
Super Robot Smashing Puzzle Time!: 12

Re: LM748 Spice Model

Post by gnsmith116 »

It turns out that I drew the schematic wrong and tied R74 to ground instead of Vr. The 741 op amp model seems to be working fine now.

Greg
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