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Old 9th December 2004, 09:51 AM   #1
Roushon is offline Roushon  India
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Default is direct soldering better than ic base?

for op-amps in audio circuits is direct soldering better than using ic base?
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Old 9th December 2004, 10:38 AM   #2
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IMHO ....yes.
However if you want to test different chips you will obviously need one. When you say audio chips I guess you mean circuitry for audio use. That might use very wideband chips which might need to be tamed if mounted on a socket. You will find that many chips for audio use are extremely wideband - seemingly unnecessary but audibly proved otherwise.
Used carefully , you can get by with (machined) sockets.
There are some pictures on some other thread. Do a search.
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Old 9th December 2004, 12:19 PM   #3
Markje is offline Markje  Netherlands
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If you use a good socket it is not a problem (in my opinion).

edit: by that I mean, no difference.

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Old 9th December 2004, 12:22 PM   #4
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The only reason for using a IC socket is if you want to replace the IC in a easy way, for test purposes etc but normally avoid it!

If you do want to use a socket for some reason, use a socket of good quality with round holes with "tulip" contacts.

Good socket below.
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Old 9th December 2004, 12:28 PM   #5
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Not so good but cheaper.
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Old 9th December 2004, 12:59 PM   #6
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If your soldering skill are not that sharp and u fear damaging the component or if its some real sensitive one...going the socket way is a good option initially...!!
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Old 9th December 2004, 02:19 PM   #7
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you can get very high quality machined headers -- these come in rows of 25 -- just snip what you need

when I am using DIP ADC's or DAC's I use a socket in the protos -- but there is quite a bit of capacitance and inductance in a "leaded" device vs an SMT device.
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Old 9th December 2004, 02:44 PM   #8
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yes...the stray elements are something to worry about at high frequencies...Especially if ur doing radio work or clocking above 30-50Mhz digital, sockets are a strict no no..!!
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Old 9th December 2004, 02:58 PM   #9
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you don't socket a high speed current feedback amplifier...
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Old 9th December 2004, 03:19 PM   #10
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Any high speed device(or high bandwidth device) operated at full or near full bandwidths or high gains might suffer from parasitics if not adequetly taken care off...!! Lead inductances, inter-lead coupling capacitances etc shows pronounced indulgance especially at high frequencies.
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