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Reset for ADS1211

ttd
Mastermind 7660 points
Other Parts Discussed in Thread: ADS1211

Dear Technical Support Team

I have a question about ADS1211.

Is it better to issue reset sequence of "FIGURE 27. Resetting the ADS1210/11" every power up?

Datasheet shows " If the power supply ramp rate is greater than 50mV/ms, this circuit will be adequate to ensure that the device powers up correctly."

                             "If this requirement cannot be met or if the circuit has brown-out considerations, the timing diagram of Figure 27 can be used to reset the ADS1210/11. "

So I think that it is better to issue reset sequence if requirement is satisfied or not.

Best Regards,

y.i

  • 0
    TI__Guru** 112765 points

    Hi Y.I.,

    It is ok to use the RESET pattern after every power up to ensure proper operation.  If you use the RESET pattern, make sure you wait a minimum of 25ms after the supply is stable before sending the pattern.

    Best regards,

    Bob B