AD5425 Analog Devices, AD5425 Datasheet - Page 5

• Manufacturer Part Number: AD5425
• Description: High Bandwidth, CMOS 8-Bit Serial Interface Multiplying D/A Converter
• Manufacturer: Analog Devices

Specifications of AD5425

• Resolution (bits): 8bit
• Dac Update Rate: 2.47MSPS
• Dac Settling Time: 100ns
• 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
t
t
1
2
SCLK
1
2
3
4
5
6
7
8
9
10
11
Guaranteed by design and characterization, not subject to production test.
Falling or rising edge as determined by control bits of serial word.
2
REF
= 10 V, I
LDAC
LDAC
SCLK
SYNC
DIN
1
2
1
NOTES:
1
2
OUT
ASYNCHRONOUS LDAC UPDATE MODE.
SYNCHRONOUS LDAC UPDATE MODE.
2 = 0 V, temperature range for Y version: −40°C to +125°C ; all specifications T
V
50
20
8
8
13
5
3
5
30
0
12
10
t
8
DD
= 2.5 V to 5.5 V
t
4
DB7
t
5
t
6
Unit
MHz max
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min
t
2
Figure 2. Timing Diagram
Rev. A | Page 5 of 28
t
1
t
3
DD
) and timed from a voltage level of (V
Conditions/Comments
Maximum clock frequency
SCLK cycle time
SCLK high time
SCLK low time
SYNC falling edge to SCLK falling edge setup time
Data setup time
Data hold time
SYNC rising edge to SCLK falling edge
Minimum SYNC high time
SCLK falling edge to LDAC falling edge
LDAC pulse width
SCLK falling edge to LDAC rising edge
DB0
t
7
t
9
t
10
t
11
MIN
to T
MAX
IL
, unless otherwise noted.
+ V
IH
)/2. V
DD
=2.5 V to 5.5 V,
AD5425