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SNR + 10log10

P

S

P

N

(1)

SINAD + 10log10

P

S

P

N )

P

D

(2)

THD + 10log10

P

S

P

D

(3)

ADS5444-EP

SGLS360 – AUGUST 2006

DEFINITION OF SPECIFICATIONS (continued)

SNR is either given in units of dBc (dB to carrier) when the absolute power of the fundamental is used as the

reference, or dBFS (dB to full scale) when the power of the fundamental is extrapolated to the converter’s

full-scale range.

SINAD is either given in units of dBc (dB to carrier) when the absolute power of the fundamental is used as

the reference, or dBFS (dB to full scale) when the power of the fundamental is extrapolated to the converter’s

full-scale range.

Effective Resolution Bandwidth The highest input frequency where the SNR (dB) is dropped by 3 dB for a full-scale input

amplitude.

THD is typically given in units of dBc (dB to carrier).

to carrier) when the absolute power of the fundamental is used as the reference or dBFS (dB to full scale)

when the power of the fundamental is extrapolated to the converter’s full-scale range.

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