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
phase sensitive detection
Dec 27, 2004
9 Replies
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
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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?
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.
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.
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
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
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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