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Número de pieza
componentes Descripción
ICL7126CPLZ Ver la hoja de datos (PDF) - Renesas Electronics
Número de pieza
componentes Descripción
Fabricante
ICL7126CPLZ
3 1/2 Digit, Low Power, Single Chip A/D Converter
Renesas Electronics
ICL7126CPLZ Datasheet PDF : 15 Pages
First
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ICL7216
Typical Applications
(Continued)
O /RANGE
U /RANGE
V+
TO LOGIC
V
CC
1 V+
2 D1
3 C1
4 B1
5 A1
6 F1
7 G1
8 E1
9 D2
10 C2
11 B2
12 A2
13 F2
14 E2
15 D3
16 B3
17 F3
18 E3
19 AB4
20 POL
OSC 1 40
OSC 2 39
OSC 3 38
TEST 37
REF HI 36
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
INT 27
V- 26 V-
G2 25
C3 24
A3 23
G3 22
BP 21
CD4023 OR
74C10
CD4077
FIGURE 17. CIRCUIT FOR DEVELOPING UNDERRANGE AND OVERRANGE SIGNAL FROM ICL7126 OUTPUTS
OSC 1 40
OSC 2 39
OSC 3 38
TEST 37
REF HI 36
REF LO 35
C
REF
34
C
REF
33
COMMON 32
IN HI 31
IN LO 30
A-Z 29
BUFF 28
INT 27
V - 26
G2 25
C3 24
A3 23
G3 22
BP 21
TO PIN 1
180k
50pF
10
F
0.1
F
10k
220k
0.22
F
750
180k
0.047
F
10
F
SCALE FACTOR ADJUST
(V
REF
= 100mV FOR AC TO RMS)
470k
1N914
ICL7611
5
F
+
-
2.2M
1
F
10k
4.3k
1
F 10k
1
F
0.22
F
9V
100pF
(FOR OPTIMUM
BANDWIDTH)
TO DISPLAY
TO BACKPLANE
Test is used as a common-mode reference level to ensure compatibility with most op amps.
100k
AC IN
FIGURE 18. AC TO DC CONVERTER WITH ICL7126
FN3084 Rev.5.00
Oct 25, 2004
Page 13 of 15
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