AD5686 datasheet(15/24 Pages) AD

15 / 24 page

Data Sheet

AD5696/AD5694

Rev. A | Page 15 of 24

DAC-to-DAC Crosstalk

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

output of one DAC in response to a digital code change and

subsequent analog output change of another DAC. It is measured

by loading one 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 another channel that is at mid-

scale. 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; THD is a measurement of the harmonics

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

AD5686 Datasheet(PDF) 15 Page - Analog Devices