DAC8420 Analog Devices, DAC8420 Datasheet - Page 9

• Manufacturer Part Number: DAC8420
• Description: Quad 12-Bit Serial Voltage Output DAC
• Manufacturer: Analog Devices

Specifications of DAC8420

• Resolution (bits): 12bit
• Dac Update Rate: 125kSPS
• Dac Settling Time: 8µs
• Max Pos Supply (v): +15.75V
• Single-supply: Yes
• Dac Type: Voltage Out
• Dac Input Format: Ser

Table 6. Control Function Logic Table
CLK
NC
NC
NC
↑
Low
High
High
NC
1
2
3
4
CLK and CS are interchangeable.
NC = Don’t Care.
Returning CS high while CLK is high avoids an additional false clock of serial input data. CLK and CS are interchangeable.
Do not clock in serial data while LD is low.
2
2
2
2
1
CS
High
High
High
Low
↑
NC (↑)
NC
High
1
2
2
LD
High
High
High
High
High
↓
Low
High
CLR
Low
Low
↑
High
High
High
High
High
CLSEL
High
Low
High /Low
NC
NC
NC
NC
NC
2
2
2
2
2
Serial Input Shift Register
No change
No change
No change
Shifts register one bit
Shifts register one bit
No change
No change
No change
Rev. B | Page 9 of 24
DAC Register A to DAC Register D
Loads midscale value (0x800)
Loads zero-scale value (0x000)
Latches value
No change
No change
Loads the serial data-word
Transparent
No change
4
3
DAC8420