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参数资料
| 型号： | ICL7107SCPLZ |
| 厂商： | Intersil |
| 文件页数： | 13/16页 |
| 文件大小： | 0K |
| 描述： | IC ADC 3.5DIGIT LCD/LED 40DIP |
| 标准包装： | 9 |
| 显示器类型： | LED |
| 配置： | 7 段显示 |
| 数字或字符： | A/D，3.5 位数字 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 40-DIP（0.600"，15.24mm） |
| 供应商设备封装： | 40-DIP |
| 包装： | 管件 |
| 产品目录页面： | 1236 (CN2011-ZH PDF) |
ICL7106, ICL7107, ICL7107S
Typical Applications
(Continued)
OSC 1 40
OSC 2 39
TO PIN 1
100k ?
V+
OSC 1 40
OSC 2 39
TO PIN 1
100k ?
OSC 3 38
TEST 37
REF HI 36
100pF
OSC 3 38
TEST 37
REF HI 36
100pF
SCALE
FACTOR
ADJUST
REF LO 35
C REF 34
C REF 33
0.1 μ F
REF LO 35
C REF 34
C REF 33
0.1 μ F
100k ? 1M ?
100k ? 220k ?
22k ?
COMMON 32
COMMON 32
IN HI 31
IN LO 30
A-Z 29
BUFF 28
0.47 μ F
47k ?
IN HI 31
IN LO 30
A-Z 29
BUFF 28
0.01 μ F
0.47 μ F
47k ?
ZERO
ADJUST
SILICON NPN
MPS 3704 OR
SIMILAR
9V
INT 27
V - 26
G2 25
C3 24
A3 23
G3 22
GND 21
0.22 μ F
TO DISPLAY
INT 27
V - 26
G2 25
C3 24
A3 23
G3 22
BP 21
0.22 μ F
TO DISPLAY
TO BACKPLANE
The resistor values within the bridge are determined by the desired
sensitivity.
FIGURE 17. ICL7107 MEASUREING RATIOMETRIC VALUES
OF QUAD LOAD CELL
V+
A silicon diode-connected transistor has a temperature coefficient of
about -2mV/ o C. Calibration is achieved by placing the sensing
transistor in ice water and adjusting the zeroing potentiometer for a
000.0 reading. The sensor should then be placed in boiling water
and the scale-factor potentiometer adjusted for a 100.0 reading.
FIGURE 18. ICL7106 USED AS A DIGITAL CENTIGRADE
THERMOMETER
+5V
1 V+
2 D1
OSC 1 40
OSC 2 39
1 V+
2 D1
OSC 1 40
OSC 2 39
TO LOGIC
V CC
3 C1
4 B1
5 A1
OSC 3 38
TEST 37
REF HI 36
3 C1
4 B1
5 A1
OSC 3 38
TEST 37
REF HI 36
6 F1
7 G1
8 E1
9 D2
10 C2
11 B2
12 A2
13 F2
REF LO 35
TO
C REF 34 LOGIC
GND
C REF 33
COMMON 32
IN HI 31
IN LO 30
A-Z 29
BUFF 28
TO LOGIC
V CC
12k ?
The LM339 is required to
ensure logic compatibility
with heavy display loading.
LM339
6 F1
7 G1
8 E1
9 D2
10 C2
11 B2
12 A2
13 F2
REF LO 35
C REF 34
C REF 33
COMMON 32
IN HI 31
IN LO 30
A-Z 29
BUFF 28
-
-
-
O/RANGE
14 E2
15 D3
16 B3
17 F3
18 E3
19 AB4
INT 27
V- 26
G2 25
C3 24
A3 23
G3 22
V-
O/RANGE
+
+
+
14 E2
15 D3
16 B3
17 F3
18 E3
19 AB4
INT 27
V- 26
G2 25
C3 24
A3 23
G3 22
V-
U/RANGE
20 POL
BP 21
U/RANGE
CD4023 OR
-
+
20 POL
BP 21
CD4023 OR
74C10
33k ?
74C10
CD4077
FIGURE 19. CIRCUIT FOR DEVELOPING UNDERRANGE AND
OVERRANGE SIGNAL FROM ICL7106 OUTPUTS
13
FIGURE 20. CIRCUIT FOR DEVELOPING UNDERRANGE AND
OVERRANGE SIGNALS FROM ICL7107 OUTPUT
FN3082.8
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