AD5426 Analog Devices, AD5426 Datasheet - Page 5

• Manufacturer Part Number: AD5426
• Description: High Bandwidth CMOS 8-Bit Serial Interface Multiplying D/A Converter
• Manufacturer: Analog Devices

Specifications of AD5426

• Resolution (bits): 8bit
• Dac Update Rate: 2.47MSPS
• Dac Settling Time: 50ns
• Max Pos Supply (v): +5.5V
• Single-supply: Yes
• Dac Type: Current Out
• Dac Input Format: Ser,SPI

TIMING CHARACTERISTICS
All input signals are specified with tr = tf = 1 ns (10% to 90% of V
V
Table 2.
Parameter
f
t
t
t
t
t
t
t
t
t
1
2
SCLK
1
2
3
4
5
6
7
8
9
Falling or rising edge as determined by control bits of serial word.
Daisy-chain and readback modes cannot operate at maximum clock frequency. SDO timing specifications measured with load circuit, as shown in Figure 4.
1
2
REF
= 10 V, I
SCLK
SYNC
SYNC
SDIN
SCLK
SDO
DIN
ALTERNATIVELY, DATA MAY BE CLOCKED INTO INPUT SHIFT REGISTER ON RISING EDGE OF
SCLK AS DETERMINED BY CONTROL BITS. TIMING AS PER ABOVE, WITH SCLK INVERTED.
ALTERNATIVELY, DATA MAY BE CLOCKED INTO INPUT SHIFT REGISTER ON RISING EDGE OF SCLK AS
DETERMINED BY CONTROL BITS. IN THIS CASE, DATA WOULD BE CLOCKED OUT OF SDO ON FALLING
EDGE OF SCLK. TIMING AS PER ABOVE, WITH SCLK INVERTED.
OUT
2 = 0 V; temperature range for Y version: −40°C to +125°C; all specifications T
2.5 V to 5.5 V
50
20
8
8
13
5
3
5
30
80
120
t
8
t
4
t
DB15 (N)
4
DB15
t
5
t
5
t
t6
6
4.5 V to 5.5 V
50
20
8
8
13
5
3
5
30
45
65
t
6
Figure 3. Daisy-Chain and Readback Modes Timing Diagram
t
2
Figure 2. Standalone Mode Timing Diagram
t
2
Unit
MHz max
ns min
ns min
ns min
ns min
ns typ
ns min
ns min
ns min
ns min
ns max
t
1
t
3
Rev. C | Page 5 of 28
t
1
t
3
DB0 (N)
DD
) and timed from a voltage level of (V
t
9
DB0
DB15(N)
t
(N + 1)
7
DB15
Conditions/Comments
Max clock frequency
SCLK cycle time
SCLK high time
SCLK low time
SYNC falling edge to SCLK active edge setup time
Data setup time
Data hold time
SYNC rising edge to SCLK active edge
Minimum SYNC high time
SCLK active edge to SDO valid

MIN
to T
AD5426/AD5432/AD5443
MAX
IL
, unless otherwise noted.
+ V
IH
DB0(N)
)/2. V
(N + 1)
DB0
t
7
DD
= 2.5 V to 5.5 V,
t
8