參數(shù)資料
型號： ICL7107S
廠商： Intersil Corporation
元件分類： 串行ADC
英文描述： LED Display, A/D Converters(3 1/2 位LED 顯示器驅(qū)動 A/D轉(zhuǎn)換器)
中文描述： LED顯示，A / D轉(zhuǎn)換（3 1 / 2位發(fā)光顯示器驅(qū)動的A / D轉(zhuǎn)換器）
文件頁數(shù)： 12/16頁
文件大?。?/td> 534K
代理商： ICL7107S
12
FN3082.8
FIGURE 13. ICL7107 WITH AN EXTERNAL BAND-GAP
REFERENCE (1.2V TYPE)
FIGURE 14. ICL7107 WITH ZENER DIODE REFERENCE
FIGURE 15. ICL7106 AND ICL7107: RECOMMENDED
COMPONENT VALUES FOR 2V FULL SCALE
FIGURE 16. ICL7107 OPERATED FROM SINGLE +5V
Typical Applications
(Continued)
28
40
39
38
37
36
35
34
33
32
31
30
29
27
26
25
24
23
22
21
OSC 1
OSC 2
OSC 3
TEST
REF HI
REF LO
C
REF
C
REF
COMMON
IN HI
IN LO
A-Z
BUFF
INT
V
-
G2
C3
A3
G3
GND
100pF
TO PIN 1
SET V
REF
= 100mV
0.1
μ
F
0.01
μ
F
1M
100k
1k
10k
IN
+
47k
0.47
μ
F
TO DISPLAY
IN LO is tied to supply COMMON establishing the correct common mode
voltage. If COMMON is not shorted to GND, the input voltage may float
with respect to the power supply and COMMON acts as a pre-regulator
for the reference. If COMMON is shorted to GND, the input is single
ended (referred to supply GND) and the pre-regulator is overridden.
10k
1.2V (ICL8069)
V
-
V
+
-
0.22
μ
F
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 either COMMON or GND.
28
40
39
38
37
36
35
34
33
32
31
30
29
27
26
25
24
23
22
21
OSC 1
OSC 2
OSC 3
TEST
REF HI
REF LO
C
REF
C
REF
COMMON
IN HI
IN LO
A-Z
BUFF
INT
V -
G2
C3
A3
G3
GND
100pF
TO PIN 1
SET V
REF
= 100mV
0.1
μ
F
0.01
μ
F
1M
100k
1k
100k
IN
+
-
47k
0.22
μ
F
0.47
μ
F
TO DISPLAY
+5V
-5V
6.8V
28
40
39
38
37
36
35
34
33
32
31
30
29
27
26
25
24
23
22
21
OSC 1
OSC 2
OSC 3
TEST
REF HI
REF LO
C
REF
C
REF
COMMON
IN HI
IN LO
A-Z
BUFF
INT
V -
G2
C3
A3
G3
BP/GND
100pF
TO PIN 1
SET V
REF
= 1V
0.1
μ
F
0.01
μ
F
1M
100k
25k
24k
IN
+
-
470k
0.22
μ
F
0.047
μ
F
TO DISPLAY
V+
V-
28
27
26
25
24
23
22
21
40
39
38
37
36
35
34
33
32
31
30
29
OSC 1
OSC 2
OSC 3
TEST
REF HI
REF LO
C
REF
C
REF
COMMON
IN HI
IN LO
A-Z
BUFF
INT
V -
G2
C3
A3
G3
GND
100pF
TO PIN 1
SET V
REF
= 100mV
0.1
μ
F
0.01
μ
F
1M
100k
1k
10k
IN
+
-
47k
0.22
μ
F
0.47
μ
F
TO DISPLAY
An external reference must be used in this application, since the
voltage between V+ and V- is insufficient for correct operation of the
internal reference.
15k
1.2V (ICL8069)
+5V
ICL7106, ICL7107, ICL7107S
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