Datasheet

MAX5703/MAX5704/MAX5705

Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output

Voltage DACs with Internal Reference and SPI Interface

18Maxim Integrated

Table 2. SPI Commands Summary

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

DAC COMMANDS

CODE 1 0 0 0 X X X X

CODE REGISTER

DATA[11:4]

CODE REGISTER

DATA[3:0]

X X X X

Writes data to the

CODE register

LOAD 1 0 0 1 X X X X X X X X X X X X X X X X X X X X

Transfers data from

the CODE registers

to the DAC register

CODE_LOAD 1 0 1 0 X X X X

CODE AND DAC REGISTER

DATA[11:4]

CODE AND DAC

X X X X

Simultaneously

writes data to the

CODE register

while updating DAC

CODE_LOAD 1 0 1 1 X X X X

CODE AND DAC REGISTER

DATA[11:4]

CODE AND DAC

X X X X

Simultaneously

writes data to the

CODE register

while updating DAC

RETURN 0 1 1 1 X X X X RETURN REGISTER DATA[11:4]

RETURN REGISTER

DATA[3:0]

X X X X

Updates the

RETURN register

contents for the DAC