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Selecting a microcontroller

Jingtai
Genius 4575 points
Other Parts Discussed in Thread: ADS5560, DAC7760

I have a Launchxl-F28377S but it seems not suitable to my application and I wonder which microcontroller in low-power family is suitable to this application? It is not easier to figure out one in this family.

The application:

Impedance measurement

Input siganl: Sine wave 10MHz. The aquisition rate and SNR of the ADCs on the Launchpad can't fit this requirement therefore a ADC is reqired, such as ADS5560.

Output signal: 0-10V and +/-10V. The bipolar output DAC is required, for example, DAC7760.

PWM, encoders are not neccessary in this application.

  • 0
    Guru 46710 points

    10MHz signal processing using 40 MSPS ADC have nothing to do with low power. Note that selected ADC alone needs 0.7W for operation at 40MSPS. You shall reconsider "low power" requirement :) If 200MHz C28x CPU is not suitable, then 25MHz msp430 or 48MHz msp432 both are not suitable as well. Note that your 40KSPS current output DAC does not match 40MSPS ADC by three orders of magnitude.

  • 0 in reply to Ilmars
    Genius 4575 points
    Thanks for your reminding. I'll consider carefully.

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