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TC818A Arkusz danych(PDF) 7 Page - Microchip Technology

Numer części TC818A
Szczegółowy opis  Auto-Ranging Analog-to-Digital Converter with 3-1/2 Digit Display
PDF  24 Pages
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Producent  MICROCHIP [Microchip Technology]
Strona internetowa  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC818A Arkusz danych(HTML) 7 Page - Microchip Technology

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© 2002 Microchip Technology Inc.
DS21475B-page 7
TC818A
FIGURE 3-1:
TC818A ANALOG SECTION
TC818A
+
–
2.8VREF AMP
10k
VCC
1.5
Ω
S43
VCC
R18/24k
VCC
R19/5k
Analog
Cmmon
29
REFHI
163.85mV
≈
0.1µF
CREFH
51 CFI
0.01µF
C6
R20/100k
Ω
To Digital
Section
S38 AZ
Comparator
Integrator
49
47
INT
0.01µF
0.01µF
CINT
55
RVI
BUF
150
k
54
R
BUF
220
k
R
ΩBUF
R
ΩBUF
S34
DE •
S20 DE
S18 DE
S19 DE+
S16 DE+
S17 DE-
Buffer
S35
S37
INT+
Ω + DC
C1/1µF
0.22µF
ACVH
S15 AZ
39
38
37
36
35
31
50
RX
R7/100 k
Ω
R6/100k
Ω
R5/1.638M
Ω
R1/163.85
Ω
R4/163.85k
Ω
R3/16385
Ω
R2/1638.5
Ω
RMREFL
R5
ΩR4
ΩR3
ΩR2
ΩR1
0.1µF
Ohms
Input
Current Input
R8/220
0.1µF
(PTC)
D3
6.2V
200mA
D4
R15/9
Ω
20mA
R16/1
I 45
I
R12/1.11M
R11/101k
R10/10k
R9/1k
ACVH 46
R24
10k
R23
10k
Ω
R26
3k
Ω
R27/2k
Ω
Common
D2
C3
1µF
C4
1µF
V 44
I
VR2 41
VR3 40
VR4 43
VR5 42
ADO
ADI
Voltage
Input
R22
470
k
Ω
R21
2.2
M
R14/9.9 M
Ω
R13/500k
Ω*
4.7µF
Z1
S28
S27
S26
S25
S21 DE •
S12 V • 1/1
1/1k
•
1/100
•
1/10
•
1/1
•
+AC
INT•(
Ω + DC)
S11
S13
AC-to-DC
Converter
Op Amp
V•1/1
V•1/10
V•1/100
V•1/1k
V•1/10k
1/10 1/1001/1k 1/10k
S32
S33
S31 S30 S29
1/1
•
VCC
S10
W + 1
S6
S7
S8 S9
S1
S2
S3
S4
S5
*Not Required when Resistor
Network is Used
INT•
Ω •ACΩ
V•
1/10
V•
1/100
V•
1/1
k
V•
1/10k
D1
DE
33 CREFH
32 CREFL
CAZ
+
+
53
S24
Ω 1/10k
•
••
••
CAZ
S44
HI
•
•
S14
S40
INT•
Ω•ACΩ
LO
Ω
•
52
56
S22
S22
C2
S39
1.5 k
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
ΩΩ
Ω
Ω
Ω
ΩΩ
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
+
–
+
–
+
–
34



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