AD5428 Analog Devices, AD5428 Datasheet - Page 5

• Manufacturer Part Number: AD5428
• Description: Dual 8-Bit, High Bandwidth Multiplying DACs with Parallel Interface
• Manufacturer: Analog Devices

Specifications of AD5428

• Resolution (bits): 8bit
• Dac Update Rate: 21.3MSPS
• Dac Settling Time: 30ns
• Max Pos Supply (v): +5.5V
• Single-supply: Yes
• Dac Type: Current Out
• Dac Input Format: Par

Data Sheet
TIMING CHARACTERISTICS
All input signals are specified with tr = tf = 1 ns (10% to 90% of V
V
Table 2.
Parameter
Write Mode
Data Readback Mode
Update Rate
1
Guaranteed by design and characterization, not subject to production test.
REF
t
t
t
t
t
t
t
t
t
t
t
t
t
1
2
3
4
5
6
7
8
9
10
11
12
13
= 10 V, I
1
OUT
2 = 0 V, temperature range for Y version: −40°C to +125°C. All specifications T
DACA/DACB
DATA
R/W
Limit at T
0
0
10
10
0
6
0
5
7
0
0
5
25
5
10
21.3
CS
MIN
, T
TO OUTPUT
t
1
MAX
Figure 3. Load Circuit for Data Output Timing Specifications
PIN
DATA VALID
t
3
t
8
t
Unit
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns typ
ns typ
ns typ
ns max
ns typ
ns max
MSPS
4
C
50pF
L
Figure 2. Timing Diagram
200μA
200μA
Rev. C | Page 5 of 32
t
t
2
5
DD
t
) and timed from a voltage level of (V
7
I
I
OL
OH
t
9
t
8
t
10
V
OH (MIN)
Conditions/Comments
R/W to CS setup time
R/W to CS hold time
CS low time
Address setup time
Address hold time
Data setup time
Data hold time
R/W high to CS low
CS min high time
Address setup time
Address hold time
Data access time
Bus relinquish time
Consists of CS min high time, CS low time, and output
voltage settling time
+ V
t
2
12
OL (MAX)
DATA VALID
t
MIN
11
to T
AD5428/AD5440/AD5447
MAX
t
IL
13
, unless otherwise noted.
t
2
+ V
IH
)/2. V
DD
= 2.5 V to 5.5 V,