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TC7135 Datasheet(PDF) 13 Page - TelCom Semiconductor, Inc

Part # TC7135
Description  4-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTER
PDF  13 Pages
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Manufacturer  TELCOM [TelCom Semiconductor, Inc]
Direct Link  http://www.telcom-semi.com
Logo TELCOM - TelCom Semiconductor, Inc

TC7135 Datasheet(HTML) 13 Page - TelCom Semiconductor, Inc

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TELCOM SEMICONDUCTOR, INC.
7
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8
TC7135
4-1/2 DIGIT
ANALOG-TO-DIGITAL CONVERTER
TYPICAL APPLICATIONS (Cont.)
4-1/2 Digit ADC With Multiplexed Common Cathode LED Display
TC04
28
27
26
25
24
23
22
21
9
8
7
6
5
4
3
2
1
REF IN
ANALOG
GND
INT
OUT
AZ IN
BUFF
OUT
CREF
+5V
–5V
6.8V
UR
DGND
POLARITY
OR
STROBE
RUN/HOLD
CLK IN
BUSY
1
2
3
4
5
6
7
8
9
SET VREF = 1V
1.22V
100
k
Ω
ANALOG
GND
0.47 µF
100 k
Ω
1 µF
47
k
Ω
150
Ω
+5V
150
Ω
10
11
12
13
14
15
16
17
18
+5V
CD4513
BE
1 µF
TC7135
20
19
18
17
16
15
–INPUT
+INPUT
V
+
D5 (MSD)
B1 (LSB)
B2
(LSD) D1
D2
D3
D4
B4
(MSB) B8
10
11
12
13
14
100
k
Ω
SIG
IN
+
–
0.1
µF
+5V
fO = 120 kHz
+
CREF
–
V –
TC7135
DATA BUS
CONTROL
ADDRESS BUS
6522
-VIA-
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
CA1
CA2
PB5
PB4
PB0
PB3
PB2
PB1
CHANNEL SELECTION
GAIN SELECTION
1Y
2Y
3Y
1B
2B
3B
SEL
1A
2A
3A
157
POL
OR
UR
D5
B8
B4
B2
B1
D1
D2
D3
D4
STB
R/H
V
+
REF
CAP
BUF
AZ
INT
INPUT
+
VR
INPUT
–
ANALOG
COMMON
DGND
5V
REF
VOLTAGE
10
14
16
15
8
11
3
9
GAIN: 10, 20, 50, 100
15V
15V
CHANNEL 1
CHANNEL 2
CHANNEL 3
CHANNEL 4
DIFFERENTIAL
MULTIPLEXER
DG529
DA
DB
WR
A1 A0 EN
5V
+
–
–
+
fIN
fIN
LH0084
4-Channel Data Acquisition System



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