參數(shù)資料
型號: TC818
廠商: Microchip Technology Inc.
英文描述: Auto-Ranging Analog-to-Digital Converter with 3-1/2 Digit Display
中文描述: 自動測距模擬到數(shù)字轉(zhuǎn)換器與數(shù)字顯示3-1/2
文件頁數(shù): 7/24頁
文件大?。?/td> 583K
代理商: TC818
2002 Microchip Technology Inc.
DS21475B-page 7
TC818A
FIGURE 3-1:
TC818A ANALOG SECTION
TC818A
+
–.8VR1.5 k
+
10k
V
CC
1.5
S43
V
CC
R18/24k
V
CC
R19/5k
Analog
Cmmon
34
29
REFHI
163.85mV
0.1μF
C
REFH
51 CFI
0.01μF
C6
R20/100k
To Digital
Section
S38 AZ
Comparator
Integrator
49
C Z
47
INT
0.01μF
C
INT
0.01μF
C
AZ
55
RVI
BUF
150
k
54
R
BUF
220
k
R
BUF
R
BUF
S34
DE
S20 DE
S18 DE
S19 DE+
S16 DE+
S17 DE-
Buffer
S35
S37
INT+
+ DC
C1/1μF
0.22μF
ACVH
S15 AZ
39
38
37
36
35
31
50
R
X
R7/100 k
R6/100k
R5/1.638M
R1/163.85
R4/163.85k
R3/16385
R2/1638.5
RM
REFL
R5
R4
R3
R2
R1
0.1μF
Ohms
Input
Current Input
R8/220
0.1μF
(PTC)
D3
6.2V
200mA
R16/1
D4
R15/9
20mA
II
R12/1.11M
R11/101k
R10/10k
R9/1k
ACVH 46
R24
10k
R23
10k
R26
3k
R27/2k
Common
D2
C3
1μF
C4
1μF
I
VR2 41
VR3 40
VR4 43
VR5 42
ADO
ADI
Voltage
Input
R22
470
k
R21
2.2
M
R14/9.9 M
R13/500k
*
4.7μF
Z1
S28
S27
S26
S25
S21 DE
S12 V 1/1
1/1k
1/
1/10
1/1
+AC
INT(
+ DC)
S11
S13
AC-to-DC
Converter
Op Amp
V1/1
V1/10
V1/100
V1/1k
V1/10k
1/
S10
S32
S33
S31 S30 S29
1/1
V
CC
W + 1
S6
S7
S8 S9
S1
V
1/10k
S2
S3
S4
S5
*Not Required when Resistor
Network is Used
INT
AC
V
1/10
V
1/100
V
1/1
k
D1
DE
33 C
REFH
32 C
REFL
+
+
53
S24
1/10k
S44
HI
S14
S40
INT
AC
LO
52
56
S22
S22
C2
S39
+
+
+
+
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