Affordable Analog Mutiplexer IC

Discussion in 'The Projects Forum' started by iimagine, Dec 8, 2014.

  1. iimagine

    Thread Starter Active Member

    Dec 20, 2010
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    I'm looking for an analog multiplexer IC that functions like the Harris HA-2400 but at an affordable/cheap price. Does anyone know of such IC?
     
  2. MrChips

    Moderator

    Oct 2, 2009
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    What are your criteria? There are literally thousands to choose from.
     
  3. iimagine

    Thread Starter Active Member

    Dec 20, 2010
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    basically i just wanted to be able to switch audio inputs using an MPU, what sort of criteria am i looking for?
     
  4. MrChips

    Moderator

    Oct 2, 2009
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    For starters:

    1) Number of channels (x2 for stereo)
    2) Frequency range (20-20kHz assuming audio)
    3) Voltage range (±12V, for example)
    4) Serial or parallel control of channel select
    5) Package style, thru-hole DIP or SMT
     
  5. iimagine

    Thread Starter Active Member

    Dec 20, 2010
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    1) Channels: >= 4
    2) Freq range: audio (20-20kHz)
    3) Voltage range: <= ±12V
    4) Serial
    5) Package style: thru-hole

    Thanks.
     
  6. Bernard

    AAC Fanatic!

    Aug 7, 2008
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    4066 except for +- 12V.
     
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  7. Lestraveled

    Well-Known Member

    May 19, 2014
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    The HA-2400 is not just a multiplexer, it has four independent op-amps, one on each channel, and then a 1 of 4 selector. Do you not need the built in amplifiers that the HA-2400 has?

    If you just need an analog switch, then look at the DG441.
     
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  8. iimagine

    Thread Starter Active Member

    Dec 20, 2010
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    The built in amplifiers of the HA-2400 is a nice feature and I guess thats why it is expensive; I just need an analog switch with a built in decoder. Thanks for recommending the DG441
     
  9. crutschow

    Expert

    Mar 14, 2008
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    Why do you need such a high signal voltage?
     
  10. iimagine

    Thread Starter Active Member

    Dec 20, 2010
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    I dont need a high signal voltage; I should have put VCC Voltage range <= ±12V; Signal voltages are just at line level;
    What I'm looking for is an audio signal selector IC/circuit (CD/TAPE...ect) that can be selected/switched from a Microprocessor
     
  11. GopherT

    AAC Fanatic!

    Nov 23, 2012
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    A simple old cd4066 should work just fine. About $0.30 each plus shipping.
     
  12. alfacliff

    Well-Known Member

    Dec 13, 2013
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    the 4066 is a quad bilateral switch, it has no decoder. the 4051 is a 1 of 8 multiplexer / demultiplexer that will switch line level signals wither direction with binary selection.
     
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  13. Lestraveled

    Well-Known Member

    May 19, 2014
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    The OP wants a +- 12 volt part which the DG441 will do. The CD4066 and CD4051 will not support +-12 volts because they are single supply 15 volt(max) parts.
     
  14. GopherT

    AAC Fanatic!

    Nov 23, 2012
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    The OP said, less than 12 volts. And then cal airfield that he wanted line level audio in post 10.

    I stand corrected, 4066 is not correct. 4051 should work.
     
  15. Alec_t

    AAC Fanatic!

    Sep 17, 2013
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    A simple volts dropper/shifter could probably take care of that, cheaply.
     
  16. iimagine

    Thread Starter Active Member

    Dec 20, 2010
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    Thank you everyone for your recommendations. The 4051 is a winner for me. I just ordered 10 PC for a total of $3.88 (shipping included!) Cant beat that.
     
  17. GopherT

    AAC Fanatic!

    Nov 23, 2012
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    Was that an eBay purchase or is there a US supplier with low shipping rates? Please let us know where you found those prices if not eBay.

    Cheers
     
  18. iimagine

    Thread Starter Active Member

    Dec 20, 2010
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    It was an ebay purchase
     
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