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Chip Amps Amplifiers based on integrated circuits

dc servo in preamp
dc servo in preamp
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Old 18th September 2008, 04:14 PM   #1
Ted205 is offline Ted205  United Kingdom
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Default dc servo in preamp

hi guys

just interested in your collective opinion.

i'm using lm4780s'. I plan to add an opamp buffer and pot before this chip. would it be worth adding a dc servo to the opamp input.. (as a learning exercise really)

dc offset on the lm4780s is 16mv and 18mv
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Old 19th September 2008, 10:06 AM   #2
Dxvideo is offline Dxvideo  Turkey
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Does your LM4780 work as AC or DC coupled?
And if youre mentioning about a buffer works in unity gain (it must be, if its a real buffer) then how you will apply a DC servo to it? I havent seen any DC servo application with unity gain stages!
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