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OPA658 socketable?
OPA658 socketable?
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Old 1st April 2003, 03:25 AM   #1
trespasser_guy is offline trespasser_guy  United States
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Join Date: Aug 2002
Location: USA
Question OPA658 socketable?

Is the OPA658 socketable? It is a 900MHz amp, I think... so would it be ok to socket it if I used gold plated DIP sockets? or would it cause oscillation?
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Old 2nd April 2003, 06:18 AM   #2
vbd is offline vbd
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Join Date: Jan 2002
Location: Grenoble, France
Hi,
a socket may cause oscillation because it increases the parasitic capacitances and inductances, not because the contacts are bad quality... but the exact effect depends on the exact schematic and layout...
With a current feedback opamp, read carefully the datasheet, keep the wiring to inverting input at the shortest possible, DO NOT forget decoupling capacitors !!!! A socket should work, it may only reduce the bandwidth from 900MHz to say 100MHz, that could ruin your high frequencies....
You can use individual "low profile" pin contacts as recommended...
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