Datasheet

AD7304/AD7305
Rev. C | Page 4 of 20
V
OUT
= 10V p-p
+5V
0V
–5V
+5V
0V
–5V
(IN)
V
REF
= 10V p-p
f = 20kHz
01114-003
(OUT)
Figure 3. Rail-to-Rail Reference Input to Output at 20 kHz
TIMING SPECIFICATIONS
@ V
DD
= 3 V or 5 V, V
SS
= 0 V; or V
DD
= +5 V and V
SS
= –5 V, V
SS
≤ V
REF
≤ V
DD
, –40°C < T
A
< +85°C/+125°C, unless otherwise noted.
Table 2.
Parameter Symbol 3 V ± 10% 5 V ± 10% ±5 V ± 10% Unit
INTERFACE TIMING SPECIFICATIONS
1, 2
AD7304 Only
Clock Width High t
CH
70 55 55 ns min
Clock Width Low t
CL
70 55 55 ns min
Data Setup t
DS
50 40 40 ns min
Data Hold t
DH
30 20 20 ns min
Load Pulse Width t
LDW
70 60 60 ns min
Load Setup t
LD1
40 30 30 ns min
Load Hold t
LD2
40 30 30 ns min
Clear Pulse Width t
CLWR
60 60 60 ns min
Select t
CSS
30 20 20 ns min
Deselect t
CSH
60 40 40 ns min
AD7305 Only
Data Setup t
DS
60 40 40 ns min
Data Hold t
DH
30 20 20 ns min
Address Setup t
AS
60 40 40 ns min
Address Hold t
AH
30 20 20 ns min
Write Width t
WR
60 50 50 ns min
Load Pulse Width t
LDW
60 50 50 ns min
Load Setup t
LS
60 40 40 ns min
Load Hold t
LH
30 20 20 ns min
1
These parameters are guaranteed by design and not subject to production testing.
2
All input control signals are specified with t
R
= t
F
= 2 ns (10% to 90% of V
DD
) and timed from a voltage level of 1.6 V.