If you check the datasheet this is only about DC parameters and the "bad" AD8610 is extremely good in this sense 
Short answer: None.
If you are planning to use it I can also say congratulations. I have it in my Industrial Gainclone and it is an excellent buffer and DC-servo.
Short answer: None.
If you are planning to use it I can also say congratulations. I have it in my Industrial Gainclone and it is an excellent buffer and DC-servo.
NE5523 will work but with less good DC performance but for a power amp it's perfectly alright. The only thing you ought to think about is that the bias currents are rather high. If you are going to do exactly as I have done in my Gainclone and you experience too much offset you can reduce this by having the same DC-resistance on both inputs. The + input must have a resistor
to ground with the same value as R17. Note also that you might also need to decouple this input with a 100 nF in parallel of the resistor.
If you are going to use the opamp in exactly the same application as my Gainclone you can use any good audio JFET opamp and any good BJT audio opamp with the possible need for this extra resistor.
to ground with the same value as R17. Note also that you might also need to decouple this input with a 100 nF in parallel of the resistor.
If you are going to use the opamp in exactly the same application as my Gainclone you can use any good audio JFET opamp and any good BJT audio opamp with the possible need for this extra resistor.
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