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參數(shù)資料
| 型號： | ADDAC80-CBI-V |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 2/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 12BIT LOW COST 24-CDIP |
| 產(chǎn)品培訓(xùn)模塊： | Data Converter Fundamentals DAC Architectures |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 設(shè)置時(shí)間： | 2µs |
| 位數(shù)： | 12 |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 電壓電源： | 雙 ± |
| 功率耗散（最大）： | 300mW |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 24-CDIP（0.600"，15.24mm） |
| 供應(yīng)商設(shè)備封裝： | 24-CDIP 側(cè)面鍍銅 |
| 包裝： | 管件 |
| 輸出數(shù)目和類型： | 1 電壓，單極；1 電壓，雙極 |
| 采樣率（每秒）： | * |
REV. B
ADDAC80/ADDAC85/ADDAC87
–10–
1 F
3.9M
1 F
0.01 F
10M
+VS
10k
TO
100k
+VS
–VS
10k
TO
100k
–VS
1
2
3
4
5
6
7
8
9
10
11
12
12-BIT
RESISTOR
LADDER
NETWORK
AND
CURRENT
SWITCHES
REF
CONTROL
CIRCUIT
6.3k
2k
3k
5k
24
23
22
21
20
19
18
17
16
15
14
13
Figure 6. External Adjustment and Voltage Supply
Connection Diagram, Current Model
Offset Adjustment
For unipolar (CSB) configurations, apply the digital input code
that should produce zero potential output and adjust the
OFFSET potentiometer for zero output. For bipolar (COB, CTC)
configurations, apply the digital input code that should produce
the maximum negative output voltage. Example: If the FULL
SCALE RANGE is connected for 20 V, the maximum negative
output voltage is –10 V. See Table II for corresponding codes.
Gain Adjustment
For either unipolar or bipolar configurations, apply the digital
input that should give the maximum positive voltage output.
Adjust the GAIN potentiometer for this positive full-scale voltage.
See Table II for positive full-scale voltages.
12-BIT
RESISTOR
LADDER
NETWORK
AND
CURRENT
SWITCHES
REF
CONTROL
CIRCUIT
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
6.3k
5k
+
–
1 F
0.01 F
10M
+VS
10k
TO
100k
+VS
–VS
10k
TO
100k
–VS
3.9M
Figure 7. External Adjustment and Voltage Supply
Connection Diagram, Voltage Model
10M
270k
7.8k
3.9M
180k
10k
Figure 8. Equivalent Resistances
Table II. Digital Input Analog Output
Digital Input
Analog Output
12-Bit Resolution
Voltage*
Current
MSB
LSB
0 to +10 V
10 V
0 to –2 mA
1 mA
0 0 0 0 0 0 0 0 0 0 0 0
+9.9976 V
+9.9951 V
–1.9995 mA
–0.9995 mA
0 1 1 1 1 1 1 1 1 1 1 1
+5.0000 V
0.0000 V
–1.0000 mA
0.0000 mA
1 0 0 0 0 0 0 0 0 0 0 0
+4.9976 V
4.88 mV
–0.9995 mA
+0.0005 mA
1 1 1 1 1 1 1 1 1 1 1 1
0.0000 V
–10.0000 V
0.0000 mA
–1.00 mA
l LSB
2.44 mV
–0.0049 V
0.488
A
0.488
A
*To obtain values for other binary ranges 0 to 5 V range: divide 0 to 10 values by 2;
± 5 V range: divide
± 10 V range values by 2; ±2.5 V range: divide ±10 V range values by 4.
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