TC14433/A
3-1/2 Digit, Analog-to-Digital Converter
Features
•
•
•
•
•
•
•
•
•
•
Accuracy: ±0.05% of Reading ±1 Count
Two Voltage Ranges: 1.999V and 199.9 mV
Up to 25 Conversions Per Second
Z
IN
> 1000M Ohms
Single Positive Voltage Reference
Auto-Polarity and Auto-Zero
Overrange and Underrange Signals Available
Operates in Auto-Ranging Circuits
Uses On-Chip System Clock or External Clock
Wide Supply Range: ±4.5V to ±8V
Package Type
24-Pin PDIP (Wide)
24-Pin CERDIP (Wide)
24-Pin SOIC (Wide)
V
AG
V
REF
V
X
1
2
3
24 V
DD
23 Q
3
22 Q
2
21 Q
1
R
1
4
R
1
/C
1
5
TC14433/A
20 Q0
19 DS
1
18 DS
2
17 DS
3
16 DS
4
15 OR
14 EOC
13 V
SS
C
1
6
CO
1
7
Applications
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•
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Portable Instruments
Digital Voltmeters
Digital Panel Meters
Digital Scales
Digital Thermometers
Remote A/D Sensing Systems
MPU Systems
CO
2
8
DU
9
CLK1 10
CLK0
11
V
EE
12
Device Selection Table
Part Number
TC14433AEJG
TC14433AELI
TC14433AEPG
TC14433COG
TC14433EJG
TC14433ELI
TC14433EPG
Package
24-Pin CERDIP
(Wide)
28-Pin PLCC
24-Pin PDIP
(Wide)
24-Pin SOIC
(Wide)
24-Pin CERDIP
(Wide)
28-Pin PLCC
24-Pin PDIP
(Wide)
Temperature
Range
-40°C to +85°C
R
1
5
V
X
28-Pin PLCC
V
REF
V
AG
V
DD
NC
Q
3
Q
2
25 Q
1
24 Q
0
23 DS
1
22 NC
21 DS
2
20 DS
3
4
3
2
1
28 27 26
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
R1/C
1
6
C
1
7
NC 8
CO1 9
CO
2
10
DU 11
12 13 14 15 16 17 18
EOC
CLK1
CLK0
V
EE
V
SS
NC
OR
TC14433/A
19 DS
4
Note 1:
NC = No internal connection (In 28-Pin PLCC).
2:
24-Pin SOIC (Wide) package, only for
TC14433 device.
2002 Microchip Technology Inc.
DS21394B-page 1
©
MICROCHIP [ MICROCHIP TECHNOLOGY ]
