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AD5313R

Data Sheet

Rev. B | Page 16 of 26

DAC-to-DAC Crosstalk

DAC-to-DAC crosstalk is the glitch impulse transferred to the

output of one DAC due to a digital code change and subsequent

analog output change of another DAC. It is measured by loading

the attack channel with a full-scale code change (all 0s to all 1s

and vice versa), using the write to and update commands while

monitoring the output of the victim channel that is at midscale.

The energy of the glitch is expressed in nV-sec.

Multiplying Bandwidth

The amplifiers within the DAC have a finite bandwidth. The

multiplying bandwidth is a measure of this. A sine wave on the

reference (with full-scale code loaded to the DAC) appears on

the output. The multiplying bandwidth is the frequency at

which the output amplitude falls to 3 dB below the input.

Total Harmonic Distortion (THD)

THD is the difference between an ideal sine wave and its

attenuated version using the DAC. The sine wave is used as the

reference for the DAC, and the THD is a measurement of the

harmonics present on the DAC output. It is measured in dB.

Voltage Reference Temperature Coefficient

Voltage reference TC is a measure of the change in the reference

output voltage with a change in temperature. The reference TC

is calculated using the box method, which defines the TC as the

maximum change in the reference output over a given tempera-

ture range expressed in ppm/°C, as follows:













−

TempRange

REFnom

REFmin

REFmax

where:

VREFmax is the maximum reference output measured over the

total temperature range.

VREFmin is the minimum reference output measured over the total

temperature range.

VREFnom is the nominal reference output voltage, 2.5 V.

TempRange is the specified temperature range of −40°C to +105°C.

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