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LDC1614: Replace from LDC1314 to 1614 on TIDA-00508 (1º Dial)

ttd
Mastermind 7660 points
Part Number: LDC1614
Other Parts Discussed in Thread: LDC1314, TIDA-00508,

Dear Technical Support Team,

Is it possible to replace from LDC1314 to 1614 on TIDA-00508 (1º Dial)?

I concern that software for MSP430 and GUI for windows application should be change if replace LDC1614.

I'd like to know whether it is easy or not when requiring higher resolution. 

Best Regards,

ttd

  • 0
    TI__Genius 13335 points

    Hello,
    The LDC1614 can be used to implement the same application, however the default software that comes with the 1-Degree Dial is specific to the LDC1314 so you can't simply solder on the LDC1614 and get enhanced resolution. I should also note that the mechanical design is what limits the accuracy on this particular demo and the resolution will be improved if you make a very stable mechanical design. Also if you used a LDC1614 over the LDC1314 the response rate will be slower because the LDC1614 has to stream 28 bits per channel wherease the LDC1314 only has to stream 12 bits per channel. This may also be a limitation in your design.
    Regards,
    Luke

  • 0 in reply to Luke LaPointe
    TI__Genius 14270 points

    Hi,

    To add onto what Luke said: the LDC1614 is a higher resolution version of the LDC1314. It comes in the same package, and is compatible in footprint and programming. It will work as a drop-in replacement, and the current code will work also - where it reads the 4 output registers used by the LDC1314. However, because the LDC1614 does not use the GAIN function (as it does not need it), the LDC1614 will provide lower accuracy with the same code unless you modify the software to read the 8 output registers used by the LDC1614.

    However, you will not see any significant performance improvement with the LDC1614, because of the mechanical limitations of the system. With a better mechanical implementation, you could see improvements in accuracy.

    Regards,

    ChrisO