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Voltage reference selection

Discussion in 'Electronic Design' started by [email protected], May 14, 2009.

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  1. Guest

    This is regarding the selection of voltage reference IC for TI DSP
    TMS320F2808.
    TI recommends using high precision external reference TI part
    REF3020/3120 or equivalent.
    REF3020/3120 has temperature drift of 50ppm/°C (max) from 0°C to +70°C
    and initial accuracy of 0.2%.

    Would you please tell me how the temperature drift and initial
    accuracy are selected here?
     
  2. MooseFET

    MooseFET Guest

    TI selected it based on the part they want to sell you.

    Look at your application and how much variation you can stand.
     
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