參數(shù)資料
型號(hào): TC818ACBUTR
元件分類: ADC
英文描述: 1-CH DUAL-SLOPE ADC, PQFP64
封裝: PLASTIC, QFP-64
文件頁(yè)數(shù): 18/24頁(yè)
文件大小: 528K
代理商: TC818ACBUTR
2005 Microchip Technology Inc.
DS21475C-page 3
TC818A
Typical Application
50
TC818A
0.1F
LCD
Bias
R7/100k
Ω
R6/100k
Ω
Z1
6.2V
31
39
1.6385M
Ω
0.1
F
R8/220
Ω
(PTC)
38
37
36
35
Ω
R5
(÷10,000)
Ω
R4
(÷1,000)
Ω
R3
(÷100)
Ω
R2
(÷10)
Ω
R1
(÷1)
RM
REFL
R
X
78
9
10
27
163.85k
Ω
R2/1638.5
Ω
R1/163.85
Ω
R3/16.385k
Ω
Ohms
Range
Attenuator
V
DISP
BP3
ANNUNC
LO
Ω
/A
Ω
/V
k/m/
HOLD
–MEM/
BATT
FE2
FE1
BCP2
AGD1
BCP1
FE0
AGD0
BCP0
XTAL1
DEINT
5
30
6
28
57
14
15
16
18
19
20
21
22
23
24
26
25
13
12
11
-MEM
LO
–+
AC
mVA
32.768kHz
(~
33kHz)
39pF
9V
58
XTAL2
V
SS
45
DGND
V
62
59
61
RANGE
-MEM
BUZ
4
Enable
Audio
Transducer
Current
Input
20mA
200mA
R15
D3
D4
R16
I I
Voltage
Input
R14/9.9M
Ω
44
R13*
500k
Ω
R12/1.111M
Ω
R11/101k
Ω
41
R10/10k
Ω
VR1
Voltage
Range
Attenuator
(÷1)
VR2
(÷10)
VR3
(÷100)
VR4
(÷1,000)
VR5
(÷10,000)
ADO
R9/1k
Ω
40
43
34
53
D1
29
REFHI
COM
33
C
REF
32
C
F
I
51
R20
100k
Ω
C6
0.01F
60
HOLD
C
I
47
R26/3k
Ω
R27/2k
Ω
–+
C5/1F
R24/10k
Ω
R23/10k
Ω
ADI
R21/2.2M
Ω
52
+
R22/470k
Ω
C4/1F
4.7F
C2/0.22F
ACVH
56
C1/1F
ACVL
46
R
Ω
BUF
RVIBUF
49
RVIBUF
55
R
Ω
BUF
C
AZ
0.1F
150
k
220
k
SYNC
Backplane
Drivers
1000's
Segment
and
Decimal
Point
Drive
W
163.85mV
Positive
Temperature
Coefficient
Resistor
AUTO
HOLD
R19/5k
Ω
V
CC
*Not
required
when
Resistor
Network
is
used.
(See
Applications
Section
for
details.)
D2
AGD2
C
AZ
V
CC
42
C
INT
C
REFL
C
REFH
DC/AC
or
Ω
/LO
Ω
BP1
BP2
BCP3
AC/–/
AUTO
100's
10's
1's
Display
Annunciators
COM
ΩΩ
R18/24k
Ω
Resistance
Input
54
HOLD
200mA
20mA
200mA
OHM
3
2
63
200mA
20mA
I
Ω
V
Ω
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