7805ALPRPDS Просмотр технического описания (PDF) - MAXWELL TECHNOLOGIES
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7805ALPRPDS Datasheet PDF : 22 Pages
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16-Bit Latchup Protected Analog to Digital Converter 7809LP
TABLE 14. 7809LP CONVERSION AND DATA TIMING
(TA = -40 °C TO 85 °C UNLESS OTHERWISE SPECIFIED)
SYMBOL DESCRIPTION
SUBGROUPS
MIN
TYP
MAX
UNIT
t13 External DATACLK HIGH
9, 10, 11
20
t14 External DATACLK LOW
9, 10, 11
30
t15 DATACLK HIGH Setup Time
9, 10, 11
20
t16 R/C to CS Setup Time
9, 10, 11
10
t17 SYNC Delay After DATACLK High
9, 10, 11
15
--
--
ns
--
--
ns
--
t12 + 5
ns
--
--
ns
--
35
ns
t18 Data Valid Delay
9, 10, 11
25
--
55
ns
t19 CS to Rising Edge Delay
t20 Data Available after CS LOW
9, 10, 11
25
--
9, 10, 11
6
--
--
ns
--
µs
TABLE 15. 7809LP CONVERSION DATA TIMING
DIGITAL OUTPUT
DESCRIPTION
ANALOG INPUT
BINARY TWO’S
COMPLEMENT (SB/BTC
LOW)
STRAIGHT BINARY
(SB/BTC HIGH)
Full Scale
Range
Least Signifi-
cant Bit (LSB)
+ Full Scale
(FS - 1 LSB)
Midscale
One LSB
Below Mid-
scale
-Full Scale
BINARY CODE
± 10
305 µ V
±5
153 µ V
± 3.33V
102 µ V
0V to 0V to 5V 0V to 4V
10V
153 µ V 76 µ V 61 µ V
9.99969 4.99984 3.33323 9.99984 4.99992 3.99993
5V
7V
1V
7V
4V
8V
0V
0V
0V
5V 2.5V 2V
-305 µ V -153 µ V -102 µ V 4.99984 2.49992 1.99993
7V
4V
9V
0111 1111
1111 1111
0000 0000
0000 0000
1111 1111
1111 1111
-10V -5V 3.33333 0V
0V
0V 1000 0000
3V
0000 0000
HEX
CODE
7FFF
0000
FFFF
8000
BINARY CODE
1111 1111
1111 1111
1000 0000
0000 0000
0111 1111
1111 1111
0000 0000
0000 0000
HEX
CODE
FFFF
8000
7FFF
0000
01.11.05 Rev 7
All data sheets are subject to change without notice 9
©2005 Maxwell Technologies
All rights reserved.
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