i SIMULATED THE CIRCUIT IN ATTACHED.
IT'S OK IT WORKS AROUND 12V.
BUT OPA548 IS VERY EXPENSIVE.
WHAT CONMPONENT CAN I USE IN ALTERNATIVE ?
LM675 IS CHEAPER BUT THE GAIN MUST BE AT LEAST 10, I CANNOT FIND A SOLUTION.
THANKS.
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Hi Mario,
Do you have any other information on your application? What bandwidth signals are you trying to deliver to your load?
Hi John.
I have 2 case:
1 1Arms with 5kHz (C resosant is 10uf)
2 0.2Arms with 50kHz (C resonat is 100nf)
I have already simulated by tina the circuit: is ok
The problem is the cost of OPA548....
Also can you tell me if the OPA548 and LM675 are UL marked ?
thanks in advance.
Mario.
Op Amps are not UL marked. UL testing is system-level, not component level. It is the responsibility of the circuit/system developer to have their specific product UL tested.
The OPA564 is a lower cost option to the OPA548 able to source 1.5A peak.