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參數資料
| 型號： | HI7131CPL |
| 廠商： | INTERSIL CORP |
| 元件分類： | ADC |
| 英文描述： | 3 1/2 Digit, Low Power, High CMRR, LCD/LED Display-Type A/D Converters |
| 中文描述： | 1-CH 3-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PDIP40 |
| 封裝： | PLASTIC, DIP-40 |
| 文件頁數： | 3/21頁 |
| 文件大小： | 209K |
| 代理商： | HI7131CPL |
3-1828
FIGURE 89. TYPICAL APPLICATION CIRCUIT
FIGURE 90. TEST CIRCUIT
ANALOG
INPUT
A-Z
BUFF
INT
IN HI
IN LO
COMMON
C
REF
+
V+
OSC1
OSC2
OSC3
C
REF
-
REF HI
REF LO
V-
LCD/LED
DISPLAY
9V
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
V+
D1
C1
B1
A1
F1
G1
E1
D2
C2
B2
A2
F2
E2
D3
B3
F3
E3
AB4
POL
G2
V-
C3
A3
G3
BP/GND
28
40
39
38
37
36
35
34
33
32
31
30
29
27
BUFF
OSC 1
OSC 2
OSC 3
TEST
REF HI
REF LO
C
REF
+
C
REF
-
COMMON
IN HI
IN LO
A-Z
INT
C
REF
0.1
μ
F
DUT
C
IN
C
AZ
C
INT
0.01
μ
F
0.47
μ
F
0.047
μ
F
180K
1M
1
μ
F
EXTERNAL
CLOCK
EXTERNAL
REFERENCE
EXTERNAL
INPUT
HI7131, HI7133
LCD/LED
DISPLAY
AND
TEST
LOGIC
Critical Components General Specifications:
1. C
INT
: Low dielectric absorption capacitor,
polypropylene or similar
2. C
AZ
, C
REF
, C
IN
: Low leakage capacitors
0.47
μ
F
+5V
0.47
μ
F
-5V
C
VREF
R
INT
R
IN
C
REF
= 0.1
μ
F
C
INT
= 0.047
μ
F
C
IN
= 0.01
μ
F
C
AZ
= 0.47
μ
F
C
VRH
=1
μ
F
R
IN
= 1M
R
INT
= 180k
HI7131, HI7133
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|---|---|
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