Need help with mono LM4702 Amp

[benproiii]

I already built an stereo LM4702 amp for my main speakers and i love the sound quality. I want to build one for my subwoofer. If i want to build just one channel can i leave the (comp,sink,source,+,- pins) for the unused channel on the lm4702 floating or do they need to be shorted to ground or something.

 

[benproiii]

anybody??

 

[quikie22]

As this will be for subwoofer use, maybe you can consider using both channels in bridged mode for more power?

 

[dlk666]

Hi, do you perhaps have the schematic for the amp you built, i would like to build one.

 

[petrusevski]

benproiii, id really like to see pictures and schematic from your project. Thanks

 

[gootee]

For opamps that are unity-gain stable, the standard procedure for an unused one in a dual package is to connect the output to the negative input and then ground the positive input.

But the LM4702 is apparently NOT unity-gain stable. You could probably wire the unused one with components like in Figure 1 on page 10 of the datasheet, but connect its input to ground.