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I/V OPA627's getting warm??
I/V OPA627's getting warm??
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Old 17th September 2003, 05:42 AM   #1
MWP is offline MWP  Australia
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Default I/V OPA627's getting warm??

Hi guys,

Ive got 6 OPA627's as a IV in my DAC.

Is it normal for them to get quite warm to the touch?
I wouldnt have thought so....

They are running at +-12V.

Thanks.
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Old 17th September 2003, 07:07 AM   #2
MWP is offline MWP  Australia
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Details of the DAC are here:
http://www.overclockers.com.au/~mwp/dac3/
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Old 17th September 2003, 09:09 AM   #3
peranders is offline peranders  Sweden
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I/V OPA627's getting warm??
Yes, check the normal current consumption of the OPA627. It's rather thirsty.
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Old 17th September 2003, 10:39 AM   #4
MWP is offline MWP  Australia
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Hmmm, so it is....

Thanks.
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Old 17th September 2003, 11:12 AM   #5
jonclancy is offline jonclancy  United Kingdom
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Sorry, I'm being ignorant, but the question has been burning for a long time and I have yet to stumble across the meaning:

What is I/V? I feel like it is something to do with signal inversion...

Thanks in advance for answering what is probably an obvious question.

Jon
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Old 17th September 2003, 11:22 AM   #6
bigparsnip is offline bigparsnip  United Kingdom
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Almost all DAC chips give their output as a varying current rather than voltage, and as most Hi-Fi uses a voltage for signals rather than current, the current (I) signal must be converted into a voltage one (V).
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Old 17th September 2003, 11:37 AM   #7
jonclancy is offline jonclancy  United Kingdom
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Lightbulb I am enlightened....

Thanks very much indeed BP!!

Jon
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