Datasheet

DAC7568
DAC8168
DAC8568
SBAS430D –JANUARY 2009–REVISED MAY 2012 www.ti.com
Example 3: Power-Down DAC A, DAC B and DAC H to 1kΩ and Power-Down DAC C, DAC D, and DAC F
to 100kΩ
1st: Write power-down command to DAC channel A and DAC channel B: DAC A and DAC B to 1kΩ.
DB30- DB19-
DB31
DB28
DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20
DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
Don't D16-
0 Care C3 C2 C1 C0 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 F3 F2 F1 F0
0 X 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1
2nd: Write power-down command to DAC channel H: DAC H to 1kΩ.
DB30- DB19-
DB31
DB28
DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20
DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
Don't D16-
0 Care C3 C2 C1 C0 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 F3 F2 F1 F0
0 X 0 1 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0
3rd: Write power-down command to DAC channel C and DAC channel D: DAC C and DAC D to 100kΩ.
DB30- DB19-
DB31
DB28
DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20
DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
Don't D16-
0 Care C3 C2 C1 C0 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 F3 F2 F1 F0
0 X 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 1 1 0 0
4th: Write power-down command to DAC channel F: DAC F to 100kΩ.
DB30- DB19-
DB31
DB28
DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20
DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
Don't D16-
0 Care C3 C2 C1 C0 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 F3 F2 F1 F0
0 X 0 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0
The DAC A, DAC B, DAC C, DAC D, DAC F, and DAC H analog outputs power-down to each respective
specified mode.
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