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Sigma delta conversion rate of MSP430I22

Ashutosh Pailwan1
Expert 2480 points
Other Parts Discussed in Thread: MSP430I2020

I wan to implement sample 32 samples in 20 msec.

This cycles are processed through Discrete Foureir transform to find fundamental peak amplitude.

Now my question is what is conersion rate of the sample. As they indicate is SAR ADC

Moreover, is the MSP430I2020 is suitable to implementation mathematical compuatation with high precsion

  • 0
    Guru 100405 points

    32 samples in 20ms sounds like 1.6ksps.


    The SD24 (sigma-delta, not SAR) can put out 24-bit samples (OSR=256) at 4ksps/channel.


    The "i2" series doesn't have any particular number-crunching capability -- it has a multiplier but that's about it . That said, it's possible it could manage fixed-point FFTs at 1.6ksps. But don't believe me -- check the DSPLIB documentation.

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