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參數(shù)資料
| 型號(hào)： | ES51918 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 11,000 Counts Auto DMM |
| 中文描述： | 11,000計(jì)數(shù)汽車(chē)萬(wàn)用表 |
| 文件頁(yè)數(shù)： | 31/32頁(yè) |
| 文件大?。?/td> | 510K |
| 代理商： | ES51918 |
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7. Application Circuit
v1.02 05/06/30
31
ES51918
11,000 Counts Auto DMM
Notes:
1.
Most of pins are protected by the ESD protection circuits. However pins, V+, V-, AGND, DGND and
VR1 are not protected enough because the parasitic effect must be decrease. Therefore enough external
protection is needed for assembling, carrying and keeping. In addition, components connecting to these
unprotected pins have to be soldered on board before the IC is soldered.
2.
Cp
is the compensation capacitor for measuring capacitance. Its value depends on the parasitic
capacitor on the PCB board.
3.
Light shielding for the diodes and Zeners.
V+
V+
CREF+
CREF-
CINT (
5
)
CAZ
BUFF
RAZ
IVSH
IVSL (
10
)
OVX
OVH
OVSG
OR1
VR5 (
15
)
VR4
VR3
VR2
TEST5
ACVL (
20
)
ACVH
ADI
ADO
ADOHZ
OPO (
25
)
OPIN+
OPIN-
PWD
VRH
VR (
30
)
10A
100
99.5
1K
10K
101K
1.111M
91K
10K
1μ
+
(
5
)
S
B
S
R
(
4
)
S
O
C
C
(
4
)
R
P
P
V
(
3
)
S
A
V
V
1
1
O
O
A
O
N
8
)
K
S
F
F
F
9
)
F
F
L
S
C
9
)
C
V
D
A
A
1
)
0.47μ
0.1μ
0.1μ
10μ
10μ
3V
+
+
5.6V ZI
7.5V ZI
(
80
) RANGE
HOLD
REL_ZERO
PEAK
VAHZ
(
75
) MAX/MIN
BKOUT
BUZOUT
BUZIN
ANNUNC
(
70
) BP1
BP2
BP3
BP4
SEG01
(
65
) SEG02
SEG03
SEG04
SEG05
SEG06
(
60
) SEG07
SEG08
SEG09
SEG10
SEG11
(
55
) SEG12
SEG13
SEG14
SEG15
SEG16
4M
V-
L
.
100n
470n
90k
30k
100K
100K
0.1μ
7.5K
1μ
1μ
88M
7.5K
0.1μ
4.7μ
2K
6 K
D1
D2
+
+
1μ
ADP
+
9K
1K
V-
V-
5.6V ZI
E
4
1.5K
PTC
100K
220p
1
1
100K
Cp
C
V/
/
900
90
9
0.99
0.01
μA
μA
μ
A/mA
mA
mA
10A
SGND
μA
mA
Hz
1.5K
PTC
22
4
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