is direct soldering better than ic base?

Roushon · 9th December 2004, 09:51 AM

for op-amps in audio circuits is direct soldering better than using ic base?

ashok · 9th December 2004, 10:38 AM

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.
Cheers.

Markje · 9th December 2004, 12:19 PM

If you use a good socket it is not a problem (in my opinion).

edit: by that I mean, no difference.

Greetz Mark

peranders · 9th December 2004, 12:22 PM

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.

peranders · 9th December 2004, 12:28 PM

Not so good but cheaper.

ajju · 9th December 2004, 12:59 PM

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...!!

jackinnj · 9th December 2004, 02:19 PM

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.

ajju · 9th December 2004, 02:44 PM

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..!!

jackinnj · 9th December 2004, 02:58 PM

you don't socket a high speed current feedback amplifier...

ajju · 9th December 2004, 03:19 PM

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.

9th December 2004, 09:51 AM	#1
Roushon diyAudio Member Join Date: Sep 2004 Location: Mumbai (Bombay)	is direct soldering better than ic base? for op-amps in audio circuits is direct soldering better than using ic base? __________________ S. Roushon

9th December 2004, 10:38 AM	#2
ashok diyAudio Member Join Date: Jun 2002 Location: 3RS	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. Cheers. __________________ AM

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9th December 2004, 12:19 PM	#3
Markje diyAudio Member Join Date: Jan 2004 Location: The Netherlands	If you use a good socket it is not a problem (in my opinion). edit: by that I mean, no difference. Greetz Mark

9th December 2004, 12:59 PM	#6
ajju diyAudio Member Join Date: Mar 2003 Location: 77.38E, 12.58N	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...!!

9th December 2004, 02:44 PM	#8
ajju diyAudio Member Join Date: Mar 2003 Location: 77.38E, 12.58N	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..!!

9th December 2004, 02:58 PM	#9
jackinnj diyAudio Member Join Date: Apr 2002 Location: Llanddewi Brefi, NJ	you don't socket a high speed current feedback amplifier...

9th December 2004, 03:19 PM	#10
ajju diyAudio Member Join Date: Mar 2003 Location: 77.38E, 12.58N	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.