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DEFINITIONS

Definitions of Specifications and Terminology

DAC5675-EP

SGLS381A – OCTOBER 2006 – REVISED OCTOBER 2006

Gain error is defined as the percentage error in the ratio between the measured full-scale output current and

the value of 16

× V

reference voltage) from the typical value of 1.25 V.

Offset error is defined as the percentage error in the ratio of the differential output current (IOUT1-IOUT2) and

the half of the full-scale output current for input code 8192.

THD is the ratio of the rms sum of the first six harmonic components to the rms value of the fundamental output

signal.

SNR is the ratio of the rms value of the fundamental output signal to the rms sum of all other spectral

components below the Nyquist frequency, including noise, but excluding the first six harmonics and dc.

SINAD is the ratio of the rms value of the fundamental output signal to the rms sum of all other spectral

components below the Nyquist frequency, including noise and harmonics, but excluding dc.

ACPR or adjacent channel power ratio is defined for a 3.84-Mcps 3GPP W-CDMA input signal measured in a

3.84-MHz bandwidth at a 5-MHz offset from the carrier with a 12-dB peak-to-average ratio.

APSSR or analog power supply ratio is the percentage variation of full-scale output current versus a 5%

DPSSR or digital power supply ratio is the percentage variation of full-scale output current versus a 5% variation

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