MAX5802AAUB+T Maxim Integrated, MAX5802AAUB+T Datasheet - Page 26

• Manufacturer Part Number: MAX5802AAUB+T
• Description: Digital to Analog Converters - DAC 12-Bit 2Ch DAC w/I2C
• Manufacturer: Maxim Integrated

Specifications of MAX5802AAUB+T

• Rohs: yes

The CONFIG command (B[23:17] = 0110000) updates
the LOAD functions of selected DACs. Issue the com-
mand with B16 = 0 to allow the DAC latches to operate
normally or with B16 = 1 to disable the DAC latches,
making them perpetually transparent. Mode settings of
the selected DACs are updated while the mode settings
of the rest of the DACs remain unchanged; DAC(s) are
selected by bits B[9:8]. See
The REF command (B[23:19] = 01110) updates the
global reference setting used for both DAC channels. Set
B[17:16] = 00 to use an external reference for the DACs
Table 9. REF Command Format
Maxim Integrated
Table 8. CONFIg Command Format
Ultra-Small, Dual-Channel, 8-/10-/12-Bit Buffered Output
B23 B22 B21 B20 B19 B18 B17 B16
B23 B22 B21 B20 B19 B18 B17 B16 B15 B14 B13 B12 B11 B10 B9
0
0
Default Values (all DACs) ➝
Default Values ➝
REF Command
1
1
CONFIG Command
1
1
DACs with Internal Reference and I
0
1
0
0
RF2 RF1 RF0
0
0
Table
REF Mode:
01 = 2.5V
10 = 2.0V
11 = 4.0V
00 = EXT
0
0
CONFIG Command
8.
LDB
0
0
REF Command
B15 B14 B13 B12 B11 B10 B9
X
X
X
X
X
X
X
X
Don’t Care
MAX5800/MAX5801/MAX5802
X
X
X
X
Don’t Care
X
X
X
X
or set B[17:16] to 01, 10, or 11 to select either the 2.5V,
2.048V, or 4.096V internal reference, respectively.
If RF2 (B18) is set to zero (default) in the REF command,
the reference will be powered down any time both DAC
channels are powered down (in STANDBY mode). If RF2
(B18 = 1) is set to one, the reference will remain powered
even if both DAC channels are powered down, allowing
continued operation of external circuitry. In this mode,
the 1FA shutdown state is not available. See
X
X
X
X
X
X
X
X
Selected
Selected
1 = DAC
0 = DAC
B
Select:
1
X
X
DAC
Not
B8
B8
A
1
X
X
B7
B7
X
X
X
X
B6
B6
X
X
X
X
B5
B5
X
X
X
X
2
C Interface
Don’t Care
Don’t Care
B4
B4
X
X
X
X
B3
B3
X
X
X
X
B2
B2
X
X
X
X
Table
B1
B1
X
X
X
X
9.
B0
B0
X
X
X
X
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