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272 op amp? — Parallax Forums

272 op amp?

SONIC the HedgehogSONIC the Hedgehog Posts: 321
edited 2012-02-13 08:35 in General Discussion
So I was doing an inventory of my solid state components and found a Texas Instruments TCL272CP op amp, and I'm clueless as to possible uses and all I can seem to find are data sheets and pinouts not really anything else. if any one has done anything with it, or can help, thanks a bunch!

Comments

  • kwinnkwinn Posts: 8,697
    edited 2012-02-12 18:48
    Are you sure about that number? I can't find it using Google or on TI's site.
  • SONIC the HedgehogSONIC the Hedgehog Posts: 321
    edited 2012-02-12 18:53
    the exact numbers on the IC are 09AGVCM TLC272CP
  • FranklinFranklin Posts: 4,747
    edited 2012-02-12 19:11
    Ah,yes. In electronics letter order counts for a lot.http://www.ti.com/product/tlc272?CMP=AFC-conv_SF_SEP&partnerName=DSA
  • SONIC the HedgehogSONIC the Hedgehog Posts: 321
    edited 2012-02-12 19:14
    Thanks a bunch!
  • kwinnkwinn Posts: 8,697
    edited 2012-02-12 20:00
    I have not used that chip, but I have used similar ones. It is a dual precision op amp with low offset and drift so it would be good for amplifying low level signals from sensors or other sources. The useful bandwidth would be in the 250-400KHz range depending on application. It also operates from a single supply (ie + and - voltages not required).

    There are several application circuits in the data sheet. What were you thinking of using it for?
  • SONIC the HedgehogSONIC the Hedgehog Posts: 321
    edited 2012-02-13 04:12
    To be honest I'm not sure but now I think I might test out a few circuits that creat oscillations and see if I can use this amp to amplify it. To start I will use a simple 555 because that's easy to set up.
  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2012-02-13 08:30
    Digital really does fine with a simple relaxation oscillator - like a resistor and capacitor. So there is not much advantage to using an op amp to create a nice tidy sine wave. The primary utility of op amps these days are as pre-amplification of certain sensors and some kinds of filters.

    The 555 makes a nice square wave.

    Dual op amps are handy for stereo pre-amp amplification, mixing, and filtering applications as the the silicon chip is well matched for a left and right channel.

    If you want to do something with audio, try Elliot Sound Products for more information. sound.westhost.com/
  • SONIC the HedgehogSONIC the Hedgehog Posts: 321
    edited 2012-02-13 08:35
    Thanks a bunch, I'll check it out right now!
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