Unused opamp channel

Noggin · Nov 18, 2004

Have a dual channel opamp, only using one of the channels. Should I ground both the inverting and non-inverting inputs, ground the non-inverting input and tie the output to the input, or what?

National Semi LM1877
https://www.electro-tech-online.com/custompdfs/2004/11/LM1877.pdf

Optikon · Nov 18, 2004

Noggin said:
Have a dual channel opamp, only using one of the channels. Should I ground both the inverting and non-inverting inputs, ground the non-inverting input and tie the output to the input, or what?

National Semi LM1877
https://www.electro-tech-online.com/custompdfs/2004/11/LM1877-1.pdf

What I've typically seen is to wire the unused as a non-inverting buffer.
So, wire Vp(+) to com, Vn(-) to output.

I'm sure there are many other safe ways.

Noggin · Nov 18, 2004

Thanks, I was coming back to post that after thinking about it it would be a bad idea to wire both inputs to ground because of the loss of feed back But ya beat me to it by a couple minutes

Unused opamp channel

Noggin

Member

Optikon

New Member

Noggin

Member

Similar threads

Unused opamp channel

Noggin

Member

Optikon

New Member

Noggin

Member

Similar threads

Privacy & Transparency

Privacy & Transparency