I'm making up a board that uses the opa549 operational amplifier, it is high volts and current (60V/10A). The datasheet says it needs low esr bypass capacitors, that are tantalum and ceramic. This is a rough and ready circuit, so do I have to bother with low esr? low esr seems to suggest an expensive surface mount tantalum whereas i can't see the problem with a cheap electrolytic.