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LTC1090CSW Datasheet(PDF) 14 Page - Linear Technology

Part # LTC1090CSW
Description  Single Chip 10-Bit Data Acquisition System
PDF  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1090CSW Datasheet(HTML) 14 Page - Linear Technology

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LTC1090
1090fc
4. CS Low During Conversion
In the normal mode of operation, CS is brought high
during the conversion time (see Figure 3). The serial port
ignores any SCLK activity while CS is high. The LTC1090
will also operate with CS low during the conversion. In this
mode, SCLK must remain low during the conversion as
shown in Figure 4. After the conversion is complete, the
DOUT line will become active with the first output bit. Then
the data transfer can begin as normal.
5. Microprocessor Interfaces
The LTC1090 can interface directly (without external hard-
ware) to most popular microprocessor (MPU) synchronous
Figure 3. CS High During Conversion
Figure 4. CS Low During Conversion
APPLICATIO S I FOR ATIO
LTC1090 • AI09
B9
SHIFT RESULT OUT
AND NEW ADDRESS IN
B8
B7
B6
B5
B4
B3
B2
B1
B0
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
ODD/
SIGN
SGL/
DIFF
SEL
1
DOUT
SCLK
SEL
0
UNI MSBF WL1 WL0
ODD/
SIGN
SGL/
DIFF
SEL
1
SEL
0
UNI MSBF WL1 WL0
tSMPL
SAMPLE
ANALOG
INPUT
40 TO 44 ACLK CYCLES
SHIFT
MUX
ADDRESS
IN
DIN
CS
DON’T CARE
LTC1090 • AI10
B9
SHIFT RESULT OUT
AND NEW ADDRESS IN
B8
B7
B6
B5
B4
B3
B2
B1
B0
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
ODD/
SIGN
SGL/
DIFF
SEL
1
SCLK
DOUT
SEL
0
UNI MSBF WL1 WL0
ODD/
SIGN
SGL/
DIFF
SEL
1
SEL
0
UNI MSBF WL1 WL0
tSMPL
SAMPLE
ANALOG
INPUT
40 TO 44 ACLK CYCLES
SCLK MUST REMAIN LOW
SHIFT
MUX
ADDRESS
IN
DIN
CS
DON’T CARE



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