AD7988-1/AD7988-5
500µA IOL
TO SDO
CL
20pF
1.4V
500µA IOH
Figure 2. Load Circuit for Digital Interface Timing
X% VIO1
tDELAY
VIH2
VIL2
Y% VIO1
tDELAY
VIH2
VIL2
1FOR VIO ≤ 3.0V, X = 90 AND Y = 10; FOR VIO > 3.0V X = 70, AND Y = 30.
2MINIMUM VIH AND MAXIMUM VIL USED. SEE DIGITAL INPUTS
SPECIFICATIONS IN TABLE 3.
Figure 3. Voltage Levels for Timing
Data Sheet
Rev. B | Page 6 of 24