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Original question:

DAC8734: Pin terminate

DAC8734: Pin terminate

Nanjunda M1
Prodigy 225 points
Part Number: DAC8734

Hi,

What should be the state of the NC pins? Can they be left floating?

Thanks & Regards,

Nanjunda M

  • 0
    TI__Mastermind 19086 points

    Hi,

    You should leave the NC pins as floating.

    Regards,

    AK

  • 0 in reply to Akhilesh K
    Prodigy 225 points

    Hi Akhilesh,

    Thanks for the inputs.

    Can you provide me a few more inputs:

    1. What's the ENOB of this DAC.

    2. Whats the SNR and THD values for the same.

    Thanks & Regards,

    Nanjunda M

  • 0 in reply to Nanjunda M1
    TI__Guru 53993 points

    Hi Nanjunda,

    We generally do not have these types of A/C specifications for our precision DACs, but I will see if I can give some background.

    1. The ENOB of this device is 16-bits.  The output is 16-bit with ±1LSB linearity.

    2. We do not measure SNR or THD for our precision DACs.  You can estimate SNR by looking at your maximum output amplitude depending on how you are configuring the device and the noise specifications.  THD is a bit harder to estimate without measuring, as glitch and settling time impact this performance as well.  The sample rate is also critical.  I do not have a value for your reference.

    Thanks,

    Paul