Datasheet

Data Sheet AD7682/AD7689
Rev. D | Page 5 of 32
AD7689A AD7682B/AD7689B
Parameter Conditions/Comments
Min Typ Max Min Typ Max
Unit
Total Harmonic Distortion
(THD)
f
IN
= 20 kHz −97 −100 dB
Spurious-Free Dynamic
Range
f
IN
= 20 kHz 105 110 dB
Channel-to-Channel Crosstalk f
IN
= 100 kHz on
adjacent channel(s)
−120 −125 dB
SAMPLING DYNAMICS
−3 dB Input Bandwidth Full bandwidth 1.7 1.7 MHz
¼ Bandwidth 0.425 0.425 MHz
Aperture Delay VDD = 5 V 2.5 2.5 ns
1
See the section. Analog Inputs
2
The bandwidth is set in the configuration register.
3
LSB means least significant bit. With the 5 V input range, one LSB is 76.3 µV.
4
See the Terminology section. These specifications include full temperature range variation but not the error contribution from the external reference.
5
With VDD = 5 V, unless otherwise noted.
6
All specifications expressed in decibels are referred to a full-scale input FSR and tested with an input signal at 0.5 dB below full scale, unless otherwise specified.