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From: John Popelish
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X-Mailer: Mozilla 4.7 [en] (Win98; U)
Subject: Re: amplifiers high gain low current
Date: Tue, 17 Sep 2002 15:44:31 GMT
NNTP-Posting-Date: Tue, 17 Sep 2002 11:44:31 EDT
Samuel Kristanto wrote:
> My name is Samuel, I have a problem with my final project.
> I have a power supply that step up from battery 3V to 50V(10mA)--> I
> use boost regulator from Mic2570-2BM.
> Now I have to make an amplifier using the output from my soundcard to
> the input of my amplifiers, I want to use maybe an OP-AMPS but its
> very difficult to find the OP-AMPS that fit with 50V and need better
> power than 500mW. Please help me to solve this amplifiers problem.
> please reply me at : firstname.lastname@example.org
> Thanks a lot
> Samuel Kristanto
High voltage opamps that draw less than 10 ma are available, but they
may not be cheap.
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