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參數(shù)資料
| 型號： | TC815CBU |
| 元件分類： | ADC |
| 英文描述： | 1-CH DUAL-SLOPE ADC, PQFP64 |
| 封裝： | PLASTIC, QFP-64 |
| 文件頁數(shù)： | 20/26頁 |
| 文件大?。?/td> | 575K |
| 代理商： | TC815CBU |
2005 Microchip Technology Inc.
DS21474C-page 3
TC815
Typical Application and Test Circuit
-MEM
AUTO
HOLD
LO
kΩ
mVA
AC
–
+
11
50
7
8
9
10
12
13
25
31
39
26
24
23
22
21
20
19
18
16
15
14
R6/100k
Ω
R7/100k
Ω
R8/220
Ω
(PTC)
Positive
Temperature
Coefficient
Resistor
R5/1.6385M
Ω
38
R4/163.85k
Ω
37
R3/16.385k
Ω
36
R2/1638.5
Ω
35
45
44
41
40
42
53
52
56
46
54
55
49
47
60
51
32
33
29
34
ADI
ACVH
ACVL
RΩ
BUF
RVIBUF
C
AZ
INT
HOLD
CIF
C
REFL
C
REFH
ANALOG
COM
REFHI
30
61
59
62
63
2
3
58
27
57
28
6
RM
REFH
-MEM
Manual
RANGE
Change
DC/AC
or
Ω
/LOW
Ω
I
OHMS
20mA
Digital
GND
V
SSD
V
SSA
V
CC
XTAL1
BUZ
XTAL2
5
4
43
V
I
(÷1)
V
R2
(÷10)
V
R3
(÷100)
V
R4
(÷1,000)
V
R5
(÷10,000)
ADO
R1/163.85
R14/9.9M
Ω
R12/1.11M
Ω
R11/101k
Ω
R10/10k
Ω
R9/1k
Ω
R13
500k
Ω
Z1
6.2V
20mA
200mA
Current
Input
Voltage
Input
Common
0.01
F
Ohms
Input
0.1F
If
LCD
Bias
is
Connected
to
DIG
GND,
Peak
Drive
Signal
≈
5V.
LCD
Bias
Tri-Plex
LCD
Display
Segment
&
Decimal
Point
Drive
1's
10's
100's
1000's
Display
Annunciators
Backplane
Drivers
Ohms
Range
Attenuator
RMREFL
Ω
R5
(÷
10,000)
Ω
R4
(÷
1,000)
Ω
R3
(÷
100)
Ω
R2
(÷
10)
R1
(÷
1)
I I
RX
VDISP
BP1
BP2
BP3
LO
Ω
/A
Ω
V
K/m
HOLD
AC/–/AUTO
-MEM/
BATT
BCP3
BCP2
FE2
AGD2
BCP1
FE1
AGD1
BCP0
FE0
AGD0
R15
9Ω
R16
1Ω
D3
D4
Enable
Audio
Transducer
32.768kHz
(33kHz)
9V
+–
39pf
V
Ω
20mA
200mA
SIB
SIA
To
V
CC
153.850mV
R19/5k
Ω
R18/24k
Ω
C
REF
0.1F
R20
100
kΩ
C6
0.01F
C
INT
C
AZ
150
kΩ
200
kΩ
0.1F
R
Ω
BUF
RVIBUF
R26/3k
Ω
R24/10k
Ω
R23/10k
Ω
R22/470k
Ω
R21/2.2M
Ω
C4/f
4.7f
C2/0.22F
R27/2k
Ω
C1/1F
C5/1f –+
–+
D1
D2
Voltage
Range
Attenuator
*Not
Required
when
Resistor
Network
is
used.
TC815
3-1/2
Digit
Auto-Ranging
DMM
with
HOLD
Function
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