Datasheet

19Maxim Integrated
MAX5713/MAX5714/MAX5715
Ultra-Small, Quad-Channel, 8-/10-/12-Bit Buffered
Output DACs with Internal Reference and SPI Interface
Table 2. SPI Commands Summary (continued)
COMMAND B23 B22 B21 B20 B19 B18 B17 B16 B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 DESCRIPTION
CONFIG 0 1 1 0
All DACs
0 0
LD_EN
X X X X
DAC D
DAC C
DAC B
DAC A
X X X X X X X X
Sets the DAC Latch Mode of the selected DACs. Only DACS with a 1 in the selection bit are updated by the command. LD_EN = 0: DAC latch is operational (LOAD and LDAC controlled) LD_EN = 1: DAC latch is transparent
REF 0 1 1 1 0
REF
Power
0 =
DAC
1 =
ON
REF
Mode
00 = EXT
01 = 2.5V 10 = 2.0V 11 = 4.1V
X X X X X X X X X X X X X X X X
Sets the reference operating mode. REF Power (B18): 0 = Internal reference is only powered if at least one DAC is powered 1 = Internal reference is always powered
ALL DAC COMMANDS
CODE_ALL 1 0 0 0 0 0 0 0
CODE REGISTER
DATA [11:4]
CODE REGISTER
DATA [3:0]
X X X X
Writes data to all CODE registers
LOAD_ALL 1 0 0 0 0 0 0 1 X X X X X X X X X X X X X X X X
Updates all DAC latches with current CODE register data
CODE_ ALL_ LOAD_ALL
1 0 0 0 0 0 1 X
CODE REGISTER
DATA [11:4]
CODE REGISTER
DATA [3:0]
X X X X
Simultaneously writes data to all CODE registers while updating all DAC registers
NO OPERATION COMMANDS No Operation
1 0 0 1 X X X X X X X X X X X X X X X X X X X X
These commands will have no effect on the device
1 0 1 X X X X X X X X X X X X X X X X X X X X X 1 1 X X X X X X X X X X X X X X X X X X X X X X
Reserved Commands: Any commands not specifically listed above are reserved for Maxim internal use only.