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TC7117ACPL Fiches technique(PDF) 5 Page - TelCom Semiconductor, Inc

No de pièce TC7117ACPL
Description  3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS WITH HOLD
Download  14 Pages
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Fabricant  TELCOM [TelCom Semiconductor, Inc]
Site Internet  http://www.telcom-semi.com
Logo TELCOM - TelCom Semiconductor, Inc

TC7117ACPL Fiches technique(HTML) 5 Page - TelCom Semiconductor, Inc

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TELCOM SEMICONDUCTOR, INC.
7
6
5
4
3
1
2
8
PIN DESCRIPTION
40-Pin PDIP/
44-Pin
40-PinCerDIP
Plastic Quad
Pin Number
Flat Package
Normal
Pin Number
Symbol
Description
1
8
HLDR
Hold pin, Logic 1 holds present display reading.
29
D1
Activates the D section of the units display.
310
C1
Activates the C section of the units display.
411
B1
Activates the B section of the units display.
512
A1
Activates the A section of the units display.
613
F1
Activates the F section of the units display.
714
G1
Activates the G section of the units display.
815
E1
Activates the E section of the units display.
916
D2 Activates the D section of the tens display.
10
17
C2
Activates the C section of the tens display.
11
18
B2
Activates the B section of the tens display.
12
19
A2
Activates the A section of the tens display.
13
20
F2
Activates the F section of the tens display.
14
21
E2
Activates the E section of the tens display.
15
22
D3
Activates the D section of the hundreds display.
16
23
B3
Activates the B section of the hundreds display.
17
24
F3
Activates the F section of the hundreds display.
18
25
E3
Activates the E section of the hundreds display.
19
26
AB4
Activates both halves of the 1 in the thousands display.
20
27
POL
Activates the negative polarity display.
21
28
BP
LCD backplane drive output (TC7116/TC7116A).
GND
Digital ground (TC7117/TC7117A).
22
29
G3
Activates the G section of the hundreds display.
23
30
A3
Activates the A section of the hundreds display.
24
31
C3
Activates the C section of the hundreds display.
25
32
G2
Activates the G section of the tens display.
26
34
V
Negative power supply voltage.
27
35
VINT
Integrator output. Connection point for integration
capacitor. See Integration Capacitor section for
additional details.
28
36
VBUFF
Integration resistor connection. Use a 47 k
Ω resistor for
200 mV full-scale range and a 470 k
Ω resistor for 2V
full-scale range.
29
37
CAZ
The size of the auto-zero capacitor influences system
noise. Use a 0.47
µF capacitor for 200 mV full scale and
a 0.047
µF capacitor for 2V full scale. See Auto-Zero
Capacitor paragraph for more details.
30
38
V
IN
The analog LOW input is connected to this pin.
31
39
V
+
IN
The analog HIGH input is connected to this pin.
39
40
COMMON
This pin is primarily used to set the analog common-
mode COMMON voltage for battery operation or in
systems where the input signal is referenced to the
power supply. See Analog Common paragraph for more
details. It also acts as a reference voltage source.
TC7116
TC7116A
TC7117
TC7117A
3-1/2 DIGIT ANALOG-TO-DIGITAL
CONVERTERS WITH HOLD


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