Datasheet

AD5689/AD5687 Data Sheet
Rev. 0 | Page 16 of 24
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.