7805ALPRPFB 데이터 시트보기 (PDF) - MAXWELL TECHNOLOGIES
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7805ALPRPFB Datasheet PDF : 22 Pages
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16-Bit Latchup Protected Analog to Digital Converter 7809LP
TABLE 12. 7809LP CONTROL LINE FUNCTIONS FOR READ AND CONVERT
SPECIFIC FUNCTION
CS
R/C
BUSY
EXT/INT
DATACL
K
PWRD
SB/BTC OPERATION
Selecting Output
x
x
x
x
x
x
0 Serial data is output in
Format
3 Binary Two’s Comple-
x
x
x
x
x
x
1 ment format.
Serial data is output in
Straight Binary format.
1. See Figure 4 for constraints on previous data valid during conversion.
ANALOG INPUT RANGE
± 10V
± 5V
±3.3V
0V to 10V
0V to 5V
0V to 4V
TABLE 13. 7809LP INPUT RANGE CONNECTION
CONNECT R1IN VIA 200Ω CONNECT R2IN VIA 100Ω
TO
TO
CONNECT R3IN TO
VIN
AGND
VIN
AGND
AGND
VIN
AGND
VIN
VIN
VIN
AGND
AGND
CAP
CAP
CAP
AGND
VIN
VIN
IMPEDANCE
22.9 kΩ
13.3 kΩ
10.7 kΩ
13.3kΩ
10.0 kΩ
10.7 kΩ
TABLE 14. 7809LP CONVERSION AND DATA TIMING
(TA = -40 °C TO 85 °C UNLESS OTHERWISE SPECIFIED)
SYMBOL DESCRIPTION
SUBGROUPS
MIN
TYP
MAX
UNIT
t1
Convert Pulse Width
9, 10, 11
40
--
6000
ns
t2
BUSY Delay
9, 10, 11
--
--
65
ns
t3
BUSY LOW
9, 10, 11
--
--
8
µs
t4
BUSY Delay after End of Conversion 9, 10, 11
--
220
--
ns
t5
Aperture Delay
9, 10, 11
--
40
--
ns
t6
Conversion Time
9, 10, 11
--
7.6
8
µs
t7
Acquisition Time
9, 10, 11
--
--
2
µs
t6 + t7 Throughput Time
9, 10, 11
--
9
10
µs
t8
R/C Low to DATACLK Delay
9, 10, 11
--
450
--
ns
t9
DATACLK Period
9, 10, 11
--
440
--
ns
t10
Data Valid to DATACLK HIGH Delay
9, 10, 11
20
75
--
ns
t11 Data Valid after DATACLK LOW
9, 10, 11
100
125
--
ns
Delay
t12 External DATACLK
9, 10, 11
100
--
--
ns
01.11.05 Rev 7
All data sheets are subject to change without notice 8
©2005 Maxwell Technologies
All rights reserved.
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