phase sensitive detection

D

diane80

Guest
hi,
pls, i need help for a experiment in optical biosensor i 'd like to set up
a system that can carry out phase sensitive detection. i learnt that one
can use the AD630 from Analog. how can design a circuit for that.
thx
 
diane80 wrote:
hi,
pls, i need help for a experiment in optical biosensor i 'd like to set up
a system that can carry out phase sensitive detection. i learnt that one
can use the AD630 from Analog. how can design a circuit for that.
thx
Click to expand...
Have you reviewed the application notes on the data sheet?
http://www.analog.com/UploadedFiles/Data_Sheets/106127811AD630_e.pdf

If you have the actual modulation frequency source available, the most
you should have to do is add a phase shift trim to get the maximum
sensitivity out of the amplifier.

--
John Popelish
 
diane80 wrote:

hi,
pls, i need help for a experiment in optical biosensor i 'd like to set up
a system that can carry out phase sensitive detection. i learnt that one
can use the AD630 from Analog. how can design a circuit for that.
thx

http://eecs.evansville.edu/pdf/lm1496.pdf
Click to expand...
you may want to look at, its cheaper and and
has examples of use.
 
thanks john, i ve read the data sheets. i think that is quite easy.
 
thanks jamie. this ic is quite new for me. i ll check it. do u know other
sources of applications?
 
Jamie wrote:

diane80 wrote:

hi,
pls, i need help for a experiment in optical biosensor i 'd like to
set up
a system that can carry out phase sensitive detection. i learnt that one
can use the AD630 from Analog. how can design a circuit for that.
thx

http://eecs.evansville.edu/pdf/lm1496.pdf
you may want to look at, its cheaper and and
has examples of use.
Click to expand...
At least at digikey, this LM1496 is considered obsolete.
You wouldn't have a commercial source ?

Rene
--
Ing.Buero R.Tschaggelar - http://www.ibrtses.com
& commercial newsgroups - http://www.talkto.net
 
Jim Thompson wrote:
On Tue, 28 Dec 2004 18:26:38 +0100, Rene Tschaggelar <none@none.net


At least at digikey, this LM1496 is considered obsolete.
You wouldn't have a commercial source ?

ON Semi shows it on their site (MC1496).
Click to expand...
Thanks Jim,
it is 0.74$ @1 at digikey. It would be interesting how it
compares to the AD630. I'll have a look at it.

Rene
 
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