LMH6672: LMH6672 GBW, open loop gain and simulation in LTspice

JapaneseStudent

Part Number: LMH6672
Other Parts Discussed in Thread: TINA-TI, LMH6682

Hello,

I would like to know the GBW and open loop gain Vol of the LMH6672.

After checking the data sheet, it was determined from the attached photo that GBW = 180MEG, Vol = 4000. Is it correct?

Since I want to simulate LMH6672 on LTspice, the ideal operational amplifier model of LTspice is GBW = 180MEG, Vol = 4000. The attached photo shows a comparison between this and the LMH6672 model on TINA-TI .

The amplification ratio is different even though they are the same inverting amplifier circuit. Is this unavoidable?

Originally, I would like to simulate LMH6682 on LTspice, but since the model of LMH6682 is not on TINA-TI, I chose LMH6672.

Regards,

over 4 years ago

0 kai klaas69 over 4 years ago

Guru 140200 points

Hi,

I would choose an OPAmp for which a TINA-TI reference design exists. These seem to be the best supported OPAmps.

Kai

0 Michael Steffes over 4 years ago

Guru 48395 points

As part of a larger project some years back to populate my filter design tools with the correct high speed op amp parameters, I tested all the available models

Could not find a TINA LMH6682 file, but I did have this data - small snip of relevant data,