TC818ACBU View Datasheet(PDF) - Microchip Technology
Part Name
Description
Manufacturer
TC818ACBU Datasheet PDF : 24 Pages
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TC818A
FIGURE 3-1:
TC818A ANALOG SECTION
Ohms
Input
0.1µF
R7/100 kΩ
ΩRX 50
R8/220Ω
R6/100kΩ RMREFL 31
(PTC)
0.1µF
R5/1.638MΩ ΩR5 39
R4/163.85kΩ ΩR4 38
R3/16385Ω ΩR3 37
Z1 R2/1638.5Ω ΩR2 36
6.2V R1/163.85Ω ΩR1 35
Current Input
20mA
R15/9Ω
200mA
R16/1Ω
II 45
D3 D4
Voltage
Input R14/9.9 MΩ
VI 44
R13/500kΩ*
*Not Required when Resistor
Network is Used
S12 V • 1/1
S21 DE • Ω
S24Ω• 1/10k
S25
Ω•
1/1k
Ω•
S26 1/100
Ω•
S27 1/10
S28 Ω•1/1
S33 S32 S31 S30 S29
Ω• Ω• Ω• Ω• Ω•
1/1 1/10 1/1001/1k 1/10k
VCC
S10
W+1
S1 V•1/1
V• V• V• V•
1/10 1/100 1/1 1/10k
k
S6 S7 S8 S9
TC818A
VCC
10kΩ
S44Ω •HIΩ
VCC
1.5Ω
S43
+ Ω• LOΩ
–2.8VR+E1F.5AkMΩP
–
S22
DE • Ω
S22
DE • Ω
R12/1.11MΩ VR2 41
R11/101kΩ VR3 40
S2 V•1/10
S3 V•1/100
S20 DE
VCC
R18/24kΩ
R19/5kΩ
29
Analog
Cmmon
34 REFHI
≈163.85mV
33 CREFH
CREFH 0.1µF
Common
D1
R10/10kΩ VR4 43
R9/1kΩ VR5 42
4.7µF
AC-to-DC
Converter
53 Op Amp
D2
R22 ADO
470
kΩ
S4 V•1/1k
S5 V•1/10k
+
S18 DE
S19 DE+ Ω
–
S11 Ω+AC
S16 DE+
32 CREFL
S17 DE-
51 CFI
R24
10kΩ
+C1µ3F
R23
+
C4
10kΩ 1µF
R26
3kΩ
R27/2kΩ
R21
2.2
MΩ
C2 ADI 52
0.22µF
ACVH 56
S14
S13 INT•( Ω + DC)
C1/1µF
INT• Ω •ACΩ
Buffer
+
ACVH 46
S40
S15 AZ
–
INT•Ω•ACΩ
S35 S37
ΩΩ
S38 AZ
–
–
+
+
S39
INT+ Ω + DC
Comparator
Ω
Integrator
S34Ω
54
RΩBUF
RΩ
BUF
220
kΩ
55
RVI
BUF
150
kΩ
49
CAZ
0.01µF
CAZ
47
INT
0.01µF
CINT
RΩBUF
R20/100kΩ
0.01µF
C6
To Digital
Section
© 2002 Microchip Technology Inc.
DS21475B-page 7
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