AD5671R datasheet(24/32 Pages) AD

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AD5674/AD5674R/AD5679/AD5679R

Data Sheet

Rev. B | Page 24 of 32

Table 10. Command Definitions

Command

Description

No operation

Write to Input Register n where n = 1 to 8, depending on the DAC selected from the

address bits in Table 11 (dependent on LDAC)

Update DAC Register n with contents of Input Register n

Write to and update DAC Channel n

Power down/power up the DAC

Hardware LDAC mask register

Software reset (power-on reset)

Internal reference setup register

Set up the daisy-chain enable (DCEN) register

Set up the readback register (readback enable)

Update all channels of the input register simultaneously with the input data

Update all channels of the DAC register and input register simultaneously with the input

data

Reserved

…

No operation, daisy-chain mode

Table 11. Address Commands

Channel Address[3:0]

Selected Channel

DAC 0

DAC 1

DAC 2

DAC 3

DAC 4

DAC 5

DAC 6

DAC 7

DAC 8

DAC 9

DAC 10

DAC 11

DAC 12

DAC 13

DAC 14

DAC 15

Figure 59. AD5679/AD5679R Input Shift Register Content

Figure 60. AD5674/AD5674R Input Shift Register Content

DB23 (MSB)

DB0 (LSB)

D11

D10

D15

D14

D13

D12

COMMAND BITS

ADDRESS BITS

DATA BITS

DB23 (MSB)

D11

D10

COMMAND BITS

ADDRESS BITS

DATA BITS

DB0 (LSB)

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