參數(shù)資料
型號(hào)： DAC667
廠商： Texas Instruments, Inc.
英文描述： Microprocessor-Compatible 12-Bit Dightal-To-Analog Converter(與微處理器兼容的12位D/A轉(zhuǎn)換器)
中文描述： 微處理器兼容的12位Dightal到模擬轉(zhuǎn)換器（與微處理器兼容的12位的D / A轉(zhuǎn)換器）
文件頁(yè)數(shù)： 7/9頁(yè)
文件大?。?/td> 218K
代理商： DAC667
7
DAC667
FIGURE 5. Power Supply, Gain and Offset Connections.
100
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
100
V
OUT
100k
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
100
V
OUT
–V
CC
Bipolar
Unipolar
(2)
50k
0.01μF
0.01μF
+V
CC
NOTES:
(1) 10μF tantalum for
optimum settling
performance.
(2) Unipolar offset adjust is
not necessary in most
applications.
(3) For the ceramic pack-
age, the lid is connec-
ted to –V
CC
.
REF OUT
REF IN
CC
OUT
EE
20V Span
10V Span
Sum Jct.
Bipolar Off.
AGND
CS
A3
A2
A1
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
Pwr Gnd
A0
(1)
0.01μF
(1)
0.01μF
+V
CC
+V
CC
–V
CC(3)
–V
CC(3)
LSB
MSB
REF OUT
REF IN
CC
OUT
EE
20V Span
10V Span
Sum Jct.
Bipolar Off.
AGND
CS
A3
A2
A1
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
Pwr Gnd
A0
100
LSB
MSB
5k
9.95k
9
1
4
Bipolar
Offset
20V Span
V
OUT
I
DAC
5
AGND
5k
2
10V Span
3
Summing
Junction
FIGURE 6. Output Amplifier Voltage Range Scaling Circuit.
9
3
4
Bipolar
Offset
Summing Junction
V
OUT
I
DAC
5
AGND
5k
9.95k
2
10V Span
5k
1
20V Span
0 to +10V
100
100k
50k
+V
CC
–V
EE
V
OUT
Increase
FIGURE 7. 0 to +10V Unipolar Voltage Output.
9
3
4
Bipolar Offset
Summing Junction
V
OUT
I
DAC
5
AGND
5k
9.95k
2
10V Span
5k
1
20V Span
±5V
100
6
V
REF OUT
V
OUT
Decrease
MICROCOMPUTER
BUS INTERFACING
8-BIT BUS INTERFACE
The DAC667 interfaces easily to 8-bit microprocessor sys-
tems of all types. The control logic makes possible the use
of right- or left-justified data formats. Data formats for 8-bit
buses are illustrated in Figure 9.
FIGURE 8.
±
5V Bipolar Voltage Output.
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