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ADC0803 Datenblatt(PDF) 12 Page - NXP Semiconductors

Teilenummer ADC0803
Bauteilbeschribung  CMOS 8-bit A/D converters
PDF  18 Pages
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Hersteller  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

ADC0803 Datenblatt(HTML) 12 Page - NXP Semiconductors

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Philips Semiconductors
Product data
ADC0803/0804
CMOS 8-bit A/D converters
2002 Oct 17
12
A/D
VIN(+)
VIN(–)
VCC
VREF/2
+
10
µF
2 k
2 k
100
FULL SCALE
OPTIONAL
TRANSDUCER
VCC
SL00024
Figure 9. Ratiometric Mode of Operation with Optional Full
Scale Adjustment
CLK IN
A GND
VREF/2
VIN(–)
A/D
+5 V
10 k
2.7 k
47
µF TO
100
µF
56 pF
10k
CS
1
2
3
4
5
6
7
8
9
10
RD
INTR
WR
VIN(+)
D GND
20
CLK R
18
17
16
15
14
13
12
11
VCC
D0
DB0
D1
D2
D3
D4
D5
D6
D7
DB1
DB2
DB3
DB4
DB5
DB6
DB7
+5 V
19
SL00025
10 k
Figure 10. Connection for Continuous Conversion
R
CLK IN 4
C
CLK
A/D
fCLK = 1/1.7 R C
R = 10 k
CLK R 19
SL00026
Figure 11. Self-Clocking the Converter
D GND
VREF/2
CLK IN
A GND
VIN(–)
A/D
10 k
CS
1
2
3
4
5
6
7
8
9
10
RD
INTR
WR
VIN(+)
20
CLK R
18
17
16
15
14
13
12
11
VCC
D0
DB0
D1
D2
D3
D4
D5
D6
D7
DB1
DB2
DB3
DB4
DB5
DB6
DB7
+5 V
19
ADDRESS
DECODE
LOGIC
INT
I/O WR
I/O RD
ANALOG
INPUTS
56 pF
SL00027
Figure 12. Interfacing to 8080A Microprocessor



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