ca3310 Intersil Corporation, ca3310 Datasheet - Page 9

• Manufacturer Part Number: ca3310
• Description: Cmos, 10-bit, A/d Converters With Internal Track And Hold
• Manufacturer: Intersil Corporation

Typical Performances Curves
NOTE:
Zero
1 LSB
1
1
3
(V
1. The voltages listed above are the ideal centers of each output code shown as a function of its associated reference voltage.
PIN NUMBER
LSB
/
/
/
4
2
4
REF
FIGURE 14. SUPPLY CURRENT vs CLOCK FREQUENCY
(V
(V
(V
12
10
1-10
8
6
4
2
0
DESCRIPTION
REF
REF
REF
=
+ - V
11
12
13
14
15
16
17
18
19
20
21
22
23
24
0
--------------------------------------------- -
V REF+
+ - V
+ - V
+ - V
CODE
REF
V
LOAD = 50pF/OUTPUT
CONTINUOUS CONVERSIONS
DD
REF
REF
REF
1024
0.5
-) - 1 LSB
= V
–
V REF-
-)
-)
-)
D0 - D9
AA
V
NAME
DRDY
V
DRST
STRT
R
V
OEM
V
V
OEL
CLK
V
REF
REF
V
AA
EXT
AA
SS
DD
= V
lN
CLOCK FREQUENCY (MHz)
1.0
3V
+
-
+
-
REF
= 3 - 6V
V REF+
Three-State outputs for data bits representing 2
Output flag signifying new data is available. Goes high at end of clock period 13, goes low when new
conversion started. Also reset asynchronously by DRST.
Digital Ground.
Active low input, resets DRDY.
Active low input, three-state enable of D2 - D9.
Active low input, three-state enable of D0, D1.
Analog Ground.
Analog + Supply.
Reference input voltage, sets 0 code (-) end of input range.
Active Low Start Conversion Input. Recognized after end of clock period 13.
Clock input or output. Conversion functions are synchronous to high-going edge.
Clock adjust input when using internal clock.
Reference input voltage, set 1023 code (+) end of input range.
Analog Input.
Digital + Supply.
1.5
VOLTAGE (NOTE 1)
4V
–
2.0
V REF-
INPUT
0.0045
4.6035
0.000
1.152
2.304
3.456
(V)
5V
2.5
=
(Continued)
4.608V
TABLE 1. PIN DESCRIPTIONS
CA3310, CA3310A
TABLE 2. OUTPUT CODES
3.0
6V
MSB
D9
0
0
0
1
1
1
3.5
6-14
D8
0
0
1
0
1
1
D7
0
0
0
0
0
1
8
7
6
4
3
2
1
0
5
DESCRIPTION
FIGURE 15. SUPPLY CURRENT vs TEMPERATURE
0
BINARY OUTPUT CODE
5V, OPEN
(LSB) through 2
D6
0
0
0
0
0
1
4V, OPEN
-50
5V, SHORT
D5
-40
0
0
0
0
0
1
3V, OPEN
D4
0
0
0
0
0
1
9
V
AND R
CLOCK = INTERNAL, FREE RUNNING
V
DD
DD
(MSB).
TEMPERATURE (
0
= 3-6V
= V
D3
0
0
0
0
0
1
EXT
4V, SHORT
AA
+
25
= OPEN OR SHORTED.
V
D2
DD
0
0
0
0
0
1
V
DD
= 6V, R
= 6V, R
o
D1
0
0
0
0
0
1
C)
3V, SHORT
EXT
EXT
LSB
D0
= SHORT
0
1
0
0
0
1
85
= OPEN
DECIMAL
COUNT
1023
256
512
768
0
1
125