AD5421 Analog Devices, AD5421 Datasheet - Page 9

• Manufacturer Part Number: AD5421
• Description: 16-Bit, Serial Input, Loop-Powered, 4mA to 20mA DAC
• Manufacturer: Analog Devices

Specifications of AD5421

• Resolution (bits): 16bit
• Dac Settling Time: 50µs
• Max Pos Supply (v): +52V
• Single-supply: Yes
• Dac Type: Current Out
• Dac Input Format: SPI

Data Sheet
Timing Diagrams
SCLK
SYNC
LDAC
SCLK
SYNC
SDIN
SDIN
SDO
SDO
t
t
12
6
INPUT WORD SPECIFIES REGISTER TO BE READ
1
D23
t
4
1
D23
UNDEFINED DATA
8
D16
2
t
7
9
D15
8
D16
Figure 2. Serial Interface Timing Diagram
Figure 3. Readback Timing Diagram
9
D15
t
24
8
D15
D0
t
3
Rev. C | Page 9 of 36
10
t
11
D14
D14
t
1
11
t
D13
2
D13
1
12
D23
SPECIFIED REGISTER DATA CLOCKED OUT
NOP OR REGISTER ADDRESS
22
D2
D2
8
D16
23
D1
D1
9
D15
D15
24
D0
t
D0
5
24
D0
t
D0
9
t
t
13
10
AD5421