[hpsdr] LTC 2208 A/D Thermal Old School

[jim goldenberg]

There has been much discussion on heat generated by the 2208 - yes it gets hot - yes it seems to be within ratings.  I design conduction cooled mil/aero products and we almost always run chip above and below manufacturer specification.  Heat will affect MTBF.  While my Mercury is still just sitting out on the table I simply turned my ATX power supply on its side so the fan blows over the board close to the ADC.  Since the power supply is not pulling much power the fan is essentially blowing ambient air over the chip and it really cools it down.  It doesn't take much airflow to do this and you elimenate any potential thermal problem.
 
Jim N1KWZ

--- On Wed, 1/14/09, Tim O'Rourke <w4yn at earthlink.net> wrote:

From: Tim O'Rourke <w4yn at earthlink.net>
Subject: Re: [hpsdr] LTC 2208 A/D Thermal Old School
To: hpsdr at lists.hpsdr.org
Date: Wednesday, January 14, 2009, 2:12 PM

***** High Performance Software Defined Radio Discussion List *****

JM2CW
I plugged in Mercury 3 weeks ago and have not turned it off since.
I can touch A/D with out burning finger, would not like to hold on too long
though!
Much cooler than those glow tube thingies I used to build my first rigs.
Works for me! 
Tim W4YN

Tim O'Rourke 
W4YN at ARRL.Net
Low Power Amateur Radio Rocks 
Member of Flying Pigs,ARCI,GQRP,RSGB,ARRL Life Member
NHRA Life Member
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