参数资料
型号: ICL7126CPL
厂商: Intersil
文件页数: 11/15页
文件大小: 0K
描述: IC ADC 3.5 DIGIT LCD LP 40-DIP
标准包装: 9
显示器类型: LCD
配置: 7 段显示
数字或字符: A/D,3.5 位数字
电流 - 电源: 70µA
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
其它名称: ICL7126CPLIS
ICL7126
Typical Applications
OSC 1 40
OSC 2 39
180k ?
OSC 1 40
OSC 2 39
560k ?
OSC 3 38
TEST 37
50pF
SET V REF
= 100mV
OSC 3 38
TEST 37
50pF
20k ?
SET V REF
= 100mV
REF HI 36
REF HI 36
V+ 35
C REF 34
C REF 33
COMMON 32
0.1 μ F
10k ?
220k ?
1M ?
+
V+ 35
C REF 34
C REF 33
COMMON 32
0.1 μ F
200k ? 27k ?
1M ?
+
V+
IN HI 31
IN LO 30
A-Z 29
BUFF 28
0.33 μ F
180k ?
0.01 μ F
-
IN
9V
IN HI 31
IN LO 30
A-Z 29
BUFF 28
0.33 μ F
180k ?
0.01 μ F
-
IN
INT 27
V - 26
750k ?
0.047 μ F
INT 27
V - 26
0.15 μ F
V-
G2 25
G2 25
C3 24
A3 23
G3 22
BP/GND 21
TO DISPLAY
TO BACKPLANE
C3 24
A3 23
G3 22
BP/GND 21
TO DISPLAY
Values shown are for 200mV full scale, 3 readings/sec., floating
supply voltage (9V battery).
FIGURE 10. ICL7126 USING THE INTERNAL REFERENCE
IN LO is tied to COMMON, thus establishing the correct common
mode voltage. COMMON acts as a pre-regulator for the reference.
Values shown are for 1 reading/sec.
FIGURE 11. ICL7126 WITH AN EXTERNAL BAND-GAP
REFERENCE (1.2V TYPE)
OSC 1 40
OSC 2 39
180k ?
OSC 1 40
OSC 2 39
100k ?
OSC 3 38
TEST 37
50pF
SET V REF
= 1.000V
OSC 3 38
TEST 37
100pF
SET V REF
= 100mV
REF HI 36
REF HI 36
V+ 35
C REF 34
C REF 33
0.1 μ F
250k ?
240k ?
V+
V+ 35
C REF 34
C REF 33
0.1 μ F
1k ? 10k ? 15k ?
1.2V (ICL8069)
+5V
COMMON 32
1M ?
+
COMMON 32
1M ?
+
IN HI 31
IN LO 30
A-Z 29
BUFF 28
0.22 μ F
1.8M ?
0.01 μ F
-
IN
IN HI 31
IN LO 30
A-Z 29
BUFF 28
0.47 μ F
47k ?
0.01 μ F
-
IN
INT 27
V - 26
750 ?
0.047 μ F
V
-
INT 27
V - 26
0.22 μ F
G2 25
G2 25
C3 24
A3 23
G3 22
BP/GND 21
TO DISPLAY
TO BACK PLANE
C3 24
A3 23
G3 22
BP/GND 21
TO DISPLAY
3 reading/s. For 1 reading/sec., delete 750 ? resistor, change C INT ,
R OSC to values of Figure 11.
FIGURE 12. RECOMMENDED COMPONENT VALUES FOR 2.0V
FULL SCALE
11
Since low TC zeners have breakdown voltages ~6.8V, diode must be
placed across the total supply (10V). As in the case of Figure 12, IN
LO may be tied to COMMON.
FIGURE 13. ICL7126 WITH ZENER DIODE REFERENCE
FN3084.5
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