Datasheet

AD9260
Rev. C | Page 9 of 44
DIGITAL SPECIFICATIONS
AVDD = +5 V, DVDD = +5 V, T
MIN
to T
MAX
unless otherwise noted.
Table 8.
Parameter AD9260 Unit
CLOCK
1
AND LOGIC INPUTS
High Level Input Voltage
(DVDD = +5 V) +3.5 V min
(DVDD = +3 V) +2.1 V max
Low Level Input Voltage
(DVDD = +5 V) +1.0 V min
(DVDD = +3 V) +0.9 V max
High Level Input Current (V
IN
= DVDD) ± 10 µA max
Low Level Input Current (V
IN
= 0 V) ± 10 µA max
Input Capacitance 5 pF typ
LOGIC OUTPUTS (with DRVDD = 5 V)
High Level Output Voltage (I
OH
= 50 µA) +4.5 V min
High Level Output Voltage (I
OH
= 0.5 mA) +2.4 V min
Low Level Output Voltage
2
(I
OL
= 0.3 mA) +0.4 V max
Low Level Output Voltage (I
OL
= 50 µA) +0.1 V max
Output Capacitance 5 pF typ
LOGIC OUTPUTS (with DRVDD = 3 V)
High Level Output Voltage (I
OH
= 50 µA) +2.4 V min
Low Level Output Voltage (I
OL
= 50 µA) +0.7 V max
1
Since CLK is referenced to AVDD, +5 V logic input levels only apply.
2
The AD9260 is not guaranteed to meet V
OL
= 0.4 V max for standard TTL load of I
OL
= 1.6 mA.
ANALOG INPUT
INPUT CLOCK
DATA OUTPUT
DAV
S1
S2
t
DS
t
H
t
CH
t
CL
t
DAV
t
DI
t
C
READ
CS
t
OD
t
OE
00581-C-008
Figure 8. Timing Diagram