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 Too many amps?		  New Topic  Reply to Topic
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e3nigma
Apprentece

16 Posts
Posted - Aug 28 2009 :  11:58:08 AM  Show Profile  Reply with Quote
I have been trying to understand the deal with amps/ volts. If I have a power supply of 12v/ 1a and need to power an op amp that only requires 12v/ .5 amps, will it burn up the op amp? Thanks.

E3

thedude
Apprentece

South Africa
27 Posts
Posted - Aug 28 2009 :  1:46:24 PM  Show Profile  Reply with Quote
No, the circuit only draws the amount of current it needs.
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audioguru
Nobel Prize Winner

Canada
4218 Posts
Posted - Aug 29 2009 :  09:34:32 AM  Show Profile  Reply with Quote
An opamp draws only 0.1mA to 30mA, not 0.5A.
There are a couple of power opamps available that draw 0.5A when they are working hard. Then they need a heatsink.
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