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DAC & ADC

Discussion in 'Electronic Design' started by DaveC, Aug 12, 2004.

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  1. DaveC

    DaveC Guest

    Hello, I'm Looking for 16 bit ADC and DAC chips with;

    - 8 bit parallel interface (two byte read)
    - 5 volt digital
    - 100 KHz sample rate.
    - good for line level audio applications.

    Thanks


    DaveC
     
  2. Have you tried searching the websites of Analog Devices, Texas Instruments,
    Burr Brown, etc?

    Mauricio
     
  3. Pooh Bear

    Pooh Bear Guest

    Generally speaking, many audio codecs will fit your requirements but for
    the absence of 8 bit parallel I/F.

    Is serial data totally unsuitable ?


    Graham
     
  4. Mike Diack

    Mike Diack Guest

    The Crystal Semi CS4231 and Analog Devices AD1848 are 16 bit stereo
    codecs that do 48 KSPS and have an 8 bit parallel I/F (and they are easy
    to use). They also have mono modes (since stereo is not specified here)
    which may be hotroddable to do 100 KSPS by appropriate loading of the
    config registers. Worth a try ?

    M
     
  5. Dan Fraser

    Dan Fraser Guest

    16 Bit you say. Do they still make anything that primitive? Look on the
    websites of TI, AKM and Cirrus.
     
  6. DaveC

    DaveC Guest

    Primitive? I must be looking in the wrong places. Analog Devices seem to do
    mainly 12 / 14 bit devices.

    DaveC
     
  7. DaveC

    DaveC Guest

    Thanks, I have found a few good bits of information now.

    Just an aside question. (Here is where my newbe status shines).

    In terms of DAC's whats the difference between Voltage and Current output
    they are two seperate classes, and what sorts of applications are they
    used in? I need mine to go directly to an audio pre-amp. I'm thinking
    Voltage output for that application

    Thanks

    DaveC
     
  8. Pooh Bear

    Pooh Bear Guest

    Current outputs always need an op-amp stage following them.

    Voltage outputs may either not be at a convenient level or may have limited
    drive capability ( and are often differential these days ) so usually need
    buffering anyway.


    Graham
     
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