https://honda-tech.com/zerothread?id=918318


First, read the info in the link posted by jdmturbosol. The last post in the thread is my predicament.

 

On the back of the op-amp package should be a pin-out diagram of the chip. Since you said quad, there are 4 op-amps in this chip that are independent from one another (except for the Vcc and ground connections). It doesn't mean you 'need' to use all 4 of them - they are just there if you need'em. You'll notice how each op-amp has two inputs labelled (-) and (+) and has an output. You only need to use two of the four.

So viewing the schematic here is really all you need. The pin numbers may not be right, but the connections are.

If its really stumping you, what op-amp did you buy? I can do a quick look-up and tell you what pin #'s need to be changed to what.

 

Sweet, someone knowledgeable! I've been trying to get help for a week.


So basically, I decided to buy the LM324 after reading this:

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">When using the TL082 Dual OpAmp:

Benefits: Small Package

Draw Backs: up to 15mV error (3mV typical)


When using the LM324 Quad OpAmp:



Benefits: Very low error voltage &lt;1mV

Draw Backs: Large Package

</TD></TR></TABLE>


I mapped out all the op-amps and can use the two amp method if necessary, but I wanted to use all four amps for the lower error voltage. I just don't know how to use all four. What do you think the benefit of using all four is and how do I wire them in?

 

You're going down the wrong thought path here.

You will only use two op-amps, thats it. From a design standpoint - thats all thats needed and using more to try and reduce this 'error voltage' (which you're misinterpreting) is not going to work.

So again, just re-map the inputs/outputs from the working schematic of the TL082 to match the LM324 and you should be set.