Datasheet

MAX5803/MAX5804/MAX5805
Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output
Voltage DACs with Internal Reference and I
2
C Interface
22Maxim Integrated
CODE Command
The CODE command (B[23:20] = 1000) updates the
CODE register content for the DAC. Changes to the
CODE register content based on this command will not
affect the DAC output directly unless the LDAC input
is in a low state. Otherwise, a subsequent hardware
or software LOAD operation will be required to move
this content to the active DAC latch. This command is
gated when CLR is asserted, updates to this register are
ignored while the register is being cleared. See Table
3 and Table 4.
LOAD Command
The LOAD command (B[23:20] = 1001) updates the DAC
latch register content by uploading the current contents
of the CODE register. This command is gated when CLR
is asserted, updates to this register are ignored while the
register is being cleared. See Table 3 and Table 4.
CODE_LOAD Command
The CODE_LOAD command (B[23:20] = 1010 and 1011)
updates the CODE register contents as well as the DAC
register content of the DAC. This command is gated
when CLR is asserted, updates to these registers are
ignored while the register is being cleared. See Table 3
Figure 8. Typical I
2
C Application Circuit
µC
ADDR
SCL
SDA
SCLSDA
ADDR
+5V
SCL
SDA
MAX5803
MAX5804
MAX5805
MAX5803
MAX5804
MAX5805