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Selecting 8 Bit ADC From Texas

Anonymous
Anonymous


Hi Everyone,

Which 8 Bit ADC From Texas Instrument will be suggested for an input range from 10mV to 5V.
In the next stage I plan to give this digital output to a 8 Bit Micro-Controller.

Always selecting a particular IC from the tons of available one has been a big task for me.

Any efficient way for same.

  • 0
    TI__Prodigy 725 points

    Hi Chetan,

    there is not a straight answer to your question. I would need a bit more information

    - What is your prefered interface? SPI or I2C?

    - What is the sampling rate you need?

    - How many channels?

    Andreas

  • 0
    TI__Guru**** 181351 points

    Hi Chetan,

    Do you have any particular speed in mind?  How fast are you sampling and what is the nature of the signal you want to capture?  Is it DC or AC accuracy that you are most interested in?

  • Anonymous
    0 Anonymous in reply to Andreas Kraemer

    Hi Andreas,

    1) Interface I'm not sure of as I want to convert the output of a Geophone into digital one.

    2) Sampling rate : Not sure.

    3) Channels : Min 6 

    I think I should opt for ADC0808 ?

  • Anonymous
    0 Anonymous in reply to Tom Hendrick

    Hi Tom,

    I want to convert analog output of Geophone into digital format.

    No particular speed.

    As I wrote above I am thinking to opt for ADC0808.

  • 0 in reply to Anonymous
    TI__Prodigy 725 points

    Hi Chetan,

    if you need 6 channels min, I would suggest SPI, for speed reason.

    So the ADC I would suggest is the ADC088Sxx2. As you are not sure about the sampling rate you need, there are 3 speed grades, S022 with 200ksps, S052 with 500psps and S102 with 1MSPS. They are all pin and software compatible. So I would start with the fastest. If it turns out that you can live with slower sampling speed, you can go downwards.

    Hope this helps?
    Andreas