Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsData collecting ICsData acquisition IC - DA converter (DAC) TSSOP 16

DAC7568

DAC8168

DAC8568

SBAS430D –JANUARY 2009–REVISED MAY 2012

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Table 11. Control Matrix for the DAC7568, DAC8168, and DAC8568 (continued)

DB30- DB16-

DB31 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 DESCRIPTION

Don't D13-

0 Care C3 C2 C1 C0 A3 A2 A1 A0 D16 D15 D14 D7 D6 D5 D4 D3 D2 D1 F3 F2 F1 F0 GENERAL DATA FORMAT FOR 16-BIT DAC8568

Don't D11-

0 Care C3 C2 C1 C0 A3 A2 A1 A0 D14 D13 D12 D5 D4 D3 D2 D1 X X F3 F2 F1 F0 GENERAL DATA FORMAT FOR 14-BIT DAC8168

Don't

0 Care C3 C2 C1 C0 A3 A2 A1 A0 D12 D11 D10 D9-D3 D2 D1 X X X X F3 F2 F1 F0 GENERAL DATA FORMAT FOR 12-BIT DAC7568

Power-Down Commands

0 0 DAC DAC DAC DAC DAC DAC DAC DAC Power-up DAC A, B, C, D, E, F, G, H by setting

0 X 0 1 0 0 X X X X X X X X

H G F E D C B A respective bit to '1'

DAC DAC DAC DAC DAC DAC DAC DAC Power-down DAC A, B, C, D, E, F, G, H, 1kΩ to

0 X 0 1 0 0 X X X X X X X X 0 1

H G F E D C B A GND by setting respective bit to '0'

DAC DAC DAC DAC DAC DAC DAC DAC Power-down DAC A, B, C, D, E, F, G, H, 100kΩ to

0 X 0 1 0 0 X X X X X X X X 1 0

H G F E D C B A GND by setting respective bit to '0'

DAC DAC DAC DAC DAC DAC DAC DAC Power-down DAC A, B, C, D, E, F, G, H, High-Z to

0 X 0 1 0 0 X X X X X X X X 1 1

H G F E D C B A GND by setting respective bit to '0'

Internal Reference Commands

Power down internal reference - static mode

0 X 1 0 0 0 X X X X X X X X X X X X X X X X X 0 (default), must use external reference to operate

device; see Table 3

Power up internal reference - static mode; see

Table 2 (NOTE: When all DACs power down, the

0 X 1 0 0 0 X X X X X X X X X X X X X X X X X 1

reference powers down; when any DAC powers up,

the reference powers up)

Power up internal reference - flexible mode; see

Table 4 (NOTE: When all DACs power down, the

0 X 1 0 0 1 X X X X 1 0 0 X X X X X X X X X X X

reference powers down; when any DAC powers up,

the reference powers up)

Power up internal reference all the time regardless

0 X 1 0 0 1 X X X X 1 0 1 X X X X X X X X X X X

of state of DACs - flexible mode; see Table 5

Power down internal reference all the time

regardless of state of DACs - flexible mode; see

0 X 1 0 0 1 X X X X 1 1 0 X X X X X X X X X X X

Table 6 (NOTE: External reference must be used to

operate device)

Switching internal reference mode from flexible

0 X 1 0 0 1 X X X X 0 0 0 X X X X X X X X X X X

mode to static mode

Reserved Bits