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Natural Science Forum / Physics / Optics / July 2008Question about photodiode
As homework, i should design a transimpedance amplifier (with opamp) for photodetector's front end. I haven't any specification about photodiode's characteristics, so i haven't any information about pratical uses of this system. I can choose arbitrarily any photodiode and hence any application: so i'm looking for any application note, data sheet, reference regardings pratical (and simple) applications. I'm particurlary interested in gas sensing or any domotic application (except light sensor)...any idea? thanks in advance > As homework, i should design a transimpedance amplifier (with opamp) > for photodetector's front end. I haven't any specification about [quoted text clipped - 5 lines] > (except light sensor)...any idea? > thanks in advance Go to a Web site like www.thorlabs.com and search for silicon photodiodes. Pick one. Then design a light meter around it. It's a low speed application that can use a transimpedance amplifier. --- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/ Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/ +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm | Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html Important: Anything sent to the email address in the message header above is ignored unless my full name AND either lasers or electronics is included in the subject line. Or, you can contact me via the Feedback Form in the FAQs. In article <df9f3266-d139-449a-8384-ea4717e6cb81@z66g2000hsc.googlegroups.com>, > As homework, i should design a transimpedance amplifier (with opamp) > for photodetector's front end. I haven't any specification about [quoted text clipped - 5 lines] > (except light sensor)...any idea? > thanks in advance A Google search for transimpedance amplifier yields over 100.000 hits. Bill I suggest you download this application note: http://www.lens.unifi.it/ew/dwl.php?dwl=bm90ZXMvUGhvdG9kaW9kZV9Gcm9udGVuZHNfSG9i YnMucGRm&mtyp=application/pdf hope it helps Max |
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