[sdiy] CA3280 instead of 3080

[Michael Ruberto]

I have just ordered 2 samples of the CA3280 because I could not find DIP 
samples of the 3080. I have never worked with the 3280 so I'm wondering if 
I'll have to make any changes to use it in 3080 based circuits. I see from 
the datasheet the device has a lower input offset. Does that mean I can 
eliminate the offset trimmers so common in 3080 designs?
There are also extra pins, e.g. EMITTER (pins 2,7) and ID (pins 1,8). What 
are these connections for?

Also I see V+ on 11 & 14, am I right to assume each OTA can be powered 
individually? It isn't clear considering some of the example circuits employ 
both pins for power and some don't. The functional diagram is no help here 
either...

I'd like to use this for a SVF which used the 3080, will it be a headache?

Thanks!!

M.A. Ruberto