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ADS1254: frequency calculator

Josel Go
Expert 6835 points

Part Number: ADS1254

Hi Experts,

Our customer is asking what SCLK I must use with CLK at 2.4576 MHz ? with single input I just need to connect on the CH1+ ?

They tried to use ads1254 but the reading is not stable,

Please advise,

Keep safe.


Regards,

Josel

  • 0
    TI__Guru 56601 points

    Hi Joselito Go,

    The CLK and SCLK speeds are independent on the ADS1254, therefore the SCLK speed can be run up to the maximum defined in the datasheet

    The ADS1254 measures differentially between the two analog inputs (+ and -). Therefore you must provide a signal to the CH1- pin if you want to measure the CH1+ pin. Otherwise the result will be unstable if CH1- is floating

    -Bryan