THD + 10log10

P

S

P

D

SINAD + 10log10

P

S

P

N )

P

D

SNR + 10log10

P

S

P

N

ADS5444-SP

www.ti.com

SGLS391C – MARCH 2008 – REVISED JANUARY 2014

DEFINITION OF SPECIFICATIONS (continued)

Offset Error Offset error is the deviation of output code from mid-code when both inputs are tied to common-

mode.

Temperature Drift Temperature drift (with respect to gain error and offset error) specifies the change from the

(1)

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.

(2)

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.

(3)

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

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.

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