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phase sensitive detection

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

Reply to
diane80
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Have you reviewed the application notes on the data sheet?

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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
Reply to
John Popelish

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you may want to look at, its cheaper and and has examples of use.

Reply to
Jamie

thanks john, i ve read the data sheets. i think that is quite easy.

Reply to
diane80

thanks jamie. this ic is quite new for me. i ll check it. do u know other sources of applications?

Reply to
diane80

ON Semi shows it on their site (MC1496).

...Jim Thompson

--
|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
|  Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
|  Phoenix, Arizona            Voice:(480)460-2350  |             |
|  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  |
|       http://www.analog-innovations.com           |    1962     |
             
I love to cook with wine.      Sometimes I even put it in the food.
Reply to
Jim Thompson

The xx1496 is meant primarily for mixer use, the AD630 is a precision demodulator... it's going to depend on what kind of signal processing you're doing.

...Jim Thompson

--
|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
|  Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
|  Phoenix, Arizona            Voice:(480)460-2350  |             |
|  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  |
|       http://www.analog-innovations.com           |    1962     |
             
I love to cook with wine.      Sometimes I even put it in the food.
Reply to
Jim Thompson

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
Reply to
Rene Tschaggelar

Be careful what you do at the inputs. It can oscillate for no apparent reason if you deviate too far from the data sheet recommendations.

--
Regards, John Woodgate, OOO - Own Opinions Only. 
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk
Reply to
John Woodgate

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

Reply to
Rene Tschaggelar

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