Rainbow-electronics MAX5842 User Manual download pdf (Page 12)

MAX5842

Quad, 12-Bit, Low-Power, 2-Wire, Serial

Voltage-Output DAC

12 ______________________________________________________________________________________

SERIAL DATA INPUT

C3 C2 C1 C0 D11 D10 D9 D8

FUNCTION

0000

DAC

DATA

DAC

DATA

DAC

DATA

DAC

DATA

Load DAC A input and DAC registers with new data.

Contents of DAC B, C, and D input registers are transferred

to the respective DAC registers. All outputs are updated.

0001

DAC

DATA

DAC

DATA

DAC

DATA

DAC

DATA

Load DAC B input and DAC registers with new data.

Contents of DAC A, C, and D input registers are transferred

to the respective DAC registers. All outputs are updated.

0010

DAC

DATA

DAC

DATA

DAC

DATA

DAC

DATA

Load DAC C input and DAC registers with new data.

Contents of DAC A, B, and D input registers are transferred

to the respective DAC registers. All outputs are updated.

0011

DAC

DATA

DAC

DATA

DAC

DATA

DAC

DATA

Load DAC D input and DAC registers with new data.

Contents of DAC A, B, and C input registers are transferred

to the respective DAC registers. All outputs are updated

simultaneously.

0100

DAC

DATA

DAC

DATA

DAC

DATA

DAC

DATA

Load DAC A input register with new data. DAC outputs

remain unchanged.

0101

DAC

DATA

DAC

DATA

DAC

DATA

DAC

DATA

Load DAC B input register with new data. DAC outputs

remain unchanged.

0110

DAC

DATA

DAC

DATA

DAC

DATA

DAC

DATA

Load DAC C input register with new data. DAC outputs

remain unchanged.

0111

DAC

DATA

DAC

DATA

DAC

DATA

DAC

DATA

Load DAC D input register with new data. DAC outputs

remain unchanged.

1000

DAC

DATA

DAC

DATA

DAC

DATA

DAC

DATA

Data in all input registers is transferred to respective DAC

registers. All DAC outputs are updated simultaneously. New

data is loaded into DAC A input register.

1001

DAC

DATA

DAC

DATA

DAC

DATA

DAC

DATA

Data in all input registers is transferred to respective DAC

registers. All DAC outputs are updated simultaneously. New

data is loaded into DAC B input register.

1010

DAC

DATA

DAC

DATA

DAC

DATA

DAC

DATA

Data in all input registers is transferred to respective DAC

registers. All DAC outputs are updated simultaneously. New

data is loaded into DAC C input register.

1011

DAC

DATA

DAC

DATA

DAC

DATA

DAC

DATA

Data in all input registers is transferred to respective DAC

registers. All DAC outputs are updated simultaneously. New

data is loaded into DAC D input register.

1100

DAC

DATA

DAC

DATA

DAC

DATA

DAC

DATA

Load all DACs with new data and update all DAC outputs

simultaneously. Both input and DAC registers are updated

with new data.

1101

DAC

DATA

DAC

DATA

DAC

DATA

DAC

DATA

Load all input registers with new data. DAC outputs remain

unchanged.

Table 3. Command Byte Definitions

1 2 ... 7 8 9 10 11 12 13 14 15

Voltage-Output DAC 1

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Rainbow-electronics MAX5842 User Manual Page 12

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