Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

ENOB of a DAC or ADC - is it from the SDR, SNDR, or SFDR ?

Puppet123

Full Member level 6
Joined
Apr 26, 2017
Messages
341
Helped
21
Reputation
42
Reaction score
17
Trophy points
18
Activity points
2,960
Hello,

ENOB of a DAC or ADC - is it from the SDR, SNDR, or SFDR ?

I see various textbooks and application notes reference ENOB from these various sources.

Which is correct ?
 

stenzer

Full Member level 4
Joined
Oct 1, 2012
Messages
215
Helped
27
Reputation
54
Reaction score
24
Trophy points
1,298
Activity points
3,210
Hi,

SNR or SNDR/SINAD is usually used. See also https://www.analog.com/media/en/training-seminars/design-handbooks/Data-Conversion-Handbook/Chapter2.pdf page 50 (2.48). At the beginning of page 52 (2.50) it is mentioned that "many current ADC data sheets somewhat loosely refer to SINAD as SNR, so the engineer must be careful when interpreting these specifications", which has an influence on the stated/calculated ENOB.

The reffered The Data Conversion Handbook by Analoge Devices becomes pretty handy if some one is looking for definitions in the area of data conversion.

Greets
 

Toggle Sidebar

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top