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DAC5675 View Datasheet(PDF) - Texas Instruments

Part NameDescriptionManufacturer
DAC5675 14-BIT, 400-MSPS DIGITAL-TO-ANALOG CONVERTER TI
Texas Instruments TI
DAC5675 Datasheet PDF : 31 Pages
First Prev 21 22 23 24 25 26 27 28 29 30
DAC5675
SLAS352C − DECEMBER 2001 − REVISED AUGUST 2004
DEFINITIONS
definitions of specifications and terminology
Gain error is defined as the percentage error in the ratio between the measured full-scale output current and
the value of 16 x V(EXTIO)/RBIAS. A V(EXTIO) of 1.25 V is used to measure the gain error with external reference
voltage applied. With internal reference, this error includes the deviation of V(EXTIO) (internal bandgap 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 3.9-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%
variation of the analog power supply AVDD from the nominal. This is a dc measurement.
DPSSR or digital power supply ratio is the percentage variation of full-scale output current versus a 5% variation
of the digital power supply DVDD from the nominal. This is a dc measurement.
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