How to measure the SNDR of DAC?

[020170]

I have to measure DAC for Wireless communication.

When I look for the way of the how to measure DAC, I found "very few people wrote down their DAC's SNDR in their Paper."

Most of them only measured DAC's SFDR.

In measuring the DAC, All I have to do is to measure the DAC's SFDR?

why didn't people measure DAC's SNDR in paper?

and I want to know how to measure the DAC's SNDR.

thanks

 

[renwl]

sndr dac

I have to measure DAC for Wireless communication.

When I look for the way of the how to measure DAC, I found "very few people wrote down their DAC's SNDR in their Paper."

Most of them only measured DAC's SFDR.

In measuring the DAC, All I have to do is to measure the DAC's SFDR?

why didn't people measure DAC's SNDR in paper?

and I want to know how to measure the DAC's SNDR.

thanks

Production testing strategy is often determined by the end use of the DAC or ADC.
in a word, depend on the application.
you can use a instrument whith high precision ADC to sample the DAC output,and then use FFT to measure the DAC's SNDR. maybe some better method ?:?:

 

[020170]

sndr, dac

The method that you suggested is the way of the measurement DAC's SFDR?

I don't know how to measure SNDR, not SFDR

 

[renwl]

enob equation

The method that you suggested is the way of the measurement DAC's SFDR?

I don't know how to measure SNDR, not SFDR

I use this method to measure SNDR.

 

[020170]

dac enob

Do you mean that SNDR is equal to SFDR?

what do you think about this picture?

I don't know how did he or she measure SNR,SNDR.

 

[Jim cage]

dac sinad

How to measure the DAC's ENOB if there is no mention about the DAC SNDR (or SINAD)?

Is it possible that for a 10bit DAC the ENOB will be 10.5bit?

Based on the ENOB equation which is ENOB= (SINAD-1.76)/6.02.

a 10bit DAC from analog devices has SINAD of 65dB. Does it mean that the DAC has 10.5bit ENOB?

Why ENOB is not mentioned in the DAC jargon?