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参数资料
| 型号： | DAC8554IPWR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | DAC |
| 英文描述： | SERIAL INPUT LOADING, 12 us SETTLING TIME, 16-BIT DAC, PDSO16 |
| 封装： | GREEN, PLASTIC, TSSOP-16 |
| 文件页数： | 13/31页 |
| 文件大小： | 1039K |
| 代理商： | DAC8554IPWR |
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www.ti.com
SLAS431B – JUNE 2005 – REVISED OCTOBER 2006
Example 3: Power-Down DAC A and DAC B to 1k
and Power-Down DAC C and DAC D to 100k
Simultaneously
Write power-down command to data buffer A: DAC A to 1k.
A1
A0
LD1
LD0
DC
DAC Sel 1
DAC Sel 0
PD0
DB15
DB14
DB13
—
0
X
0
1
0
1
X
—
Write power-down command to data buffer B: DAC B to 1k.
A1
A0
LD1
LD0
DC
DAC Sel 1
DAC Sel 0
PD0
DB15
DB14
DB13
—
0
X
0
1
0
1
X
—
Write power-down command to data buffer C: DAC C to 1k.
A1
A0
LD1
LD0
DC
DAC Sel 1
DAC Sel 0
PD0
DB15
DB14
DB13
—
0
X
1
0
1
0
X
—
Write power-down command to data buffer D: DAC D to 100k and simultaneously update all DACs.
A1
A0
LD1
LD0
DC
DAC Sel 1
DAC Sel 0
PD0
DB15
DB14
DB13
—
0
1
0
X
1
0
X
—
The DAC A, DAC B, DAC C, and DAC D analog outputs simultaneously power-down to each respective
specified mode upon completion of the 4th write sequence.
Example 4: Power-Down DAC A Through DAC D to High-Impedance Sequentially:
Write power-down command to data buffer A and load DAC A: DAC A output = Hi-Z:
A1
A0
LD1
LD0
DC
DAC Sel 1
DAC Sel 0
PD0
DB15
DB14
DB13
—
0
1
X
0
1
X
—
Write power-down command to data buffer B and load DAC B: DAC B output = Hi-Z:
A1
A0
LD1
LD0
DC
DAC Sel 1
DAC Sel 0
PD0
DB15
DB14
DB13
—
0
1
X
0
1
x
—
Write power-down command to data buffer C and load DAC C: DAC C output = Hi-Z:
A1
A0
LD1
LD0
DC
DAC Sel 1
DAC Sel 0
PD0
DB15
DB14
DB13
—
0
1
X
1
0
1
X
—
Write power-down command to data buffer D and load DAC D: DAC D output = Hi-Z:
A1
A0
LD1
LD0
DC
DAC Sel 1
DAC Sel 0
PD0
DB15
DB14
DB13
—
0
1
X
1
X
—
The DAC A, DAC B, DAC C, and DAC D analog outputs sequentially power-down to high-impedance upon
completion of the 1st, 2nd, 3rd, and 4th write sequences, respectively.
20
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