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参数资料
| 型号： | MAX530 |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | +5V, Low-Power, Parallel-Input, Voltage-Output, 12-Bit DAC(单通道,电压输出,12位并行D/A转换器) |
| 中文描述： | +5V、低功耗、并行输入、电压输出、12位DAC |
| 文件页数： | 13/16页 |
| 文件大小： | 179K |
| 代理商： | MAX530 |
M
+5V, Low-Power, Parallel-Input,
Voltage-Output, 12-Bit DAC
______________________________________________________________________________________
13
A0 = A1 = 0
A0 = A1 = 1
DAC UPDATE
NBH
NBL & NBM
CS
WR
LDAC = 0 (DAC LATCH IS TRANSPARENT)
Figure 8b. 8-Bit and 16-Bit μP Timing Sequence with LDAC = 0
Unipolar Configuration
The MAX530 is configured for a 0V to +2.048V unipolar
output range by connecting ROFS and RFB to VOUT
(Figure 9). The converter operates from either single or
dual supplies in this configuration. See Table 3 for the
DAC-latch contents (input) vs. the analog VOUT (output).
In this range, 1LSB = REFIN (2
-12
).
A 0V to 4.096V unipolar output range is set up by con-
necting ROFS to AGND and RFB to VOUT (Figure 10).
Table 4 shows the DAC-latch contents vs. VOUT. The
MAX530 operates from either single or dual supplies in
this mode. In this range, 1LSB = (2)(REFIN)(2
-12
) =
(REFIN)(2
-11
).
33μF
REFIN
REFOUT
AGND
DGND
REFGND
V
DD
V
SS
ROFS
RFB
VOUT
V
OUT
0V TO-5V
+5V
G = 1
MAX530
33μF
REFIN
REFOUT
AGND
DGND
REFGND
V
DD
V
SS
ROFS
RFB
VOUT
V
OUT
0V TO-5V
+5V
G = 2
MAX530
Figure 9. Unipolar Configuration (0V to +2.048V Output)
Figure 10. Unipolar Configuration (0V to +4.096V Output)
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|---|---|
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