LTC1093ACN データシートの表示（PDF） - Linear Technology
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LTC1093ACN Datasheet PDF : 32 Pages
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LTC1091/LTC1092
LTC1093/LTC1094
APPLICATI S I FOR ATIO
Start Bit
The first “logical one” clocked into the DIN input after CS
goes low is the start bit. The start bit initiates the data
transfer. The LTC1091/LTC1093/LTC1094 will ignore all
leading zeros which precede this logical one. After the start
bit is received, the remaining bits of the input word will be
clocked in. Further inputs on the DIN pin are then ignored
until the next CS cycle.
Multiplexer (MUX) Address
The bits of the input word following the START bit assign
the MUX configuration for the requested conversion. For
a given channel selection, the converter will measure the
voltage between the two channels indicated by the + and
– signs in the selected row of the following tables. In
single-ended mode, all input channels are measured with
respect to GND on the LTC1091 and COM on the
LTC1093/LTC1094.
LTC1091 Channel Selection
SINGLE-ENDED
MUX MODE
DIFFERENTIAL
MUX MODE
MUX ADDRESS
SGL/ ODD/
DIFF SIGN
1
0
1
1
0
0
0
1
CHANNEL #
01
+
+
+–
–+
GND
–
–
1091-4 AI08
LTC1093 Channel Selection
MUX ADDRESS
SGL/ ODD/ SELECT
DIFF SIGN 1 0
0
0
00
0
0
01
0
0
10
0
0
11
0
1
00
0
1
01
0
1
10
0
1
11
DIFFERENTIAL CHANNEL SELECTION
01 2 3 4 5
+–
+–
+–
NOT USED
–+
–+
–+
NOT USED
LTC1094 Channel Selection
MUX ADDRESS
SGL/ ODD/ SELECT
DIFF SIGN 1 0
0 0 00
0 0 01
0 0 10
0 0 11
0 1 00
0 1 01
0 1 10
0 1 11
DIFFERENTIAL CHANNEL SELECTION
01 23 45 6 7
+–
+–
+–
+–
–+
–+
–+
–+
MUX ADDRESS
SGL/ ODD/ SELECT
DIFF SIGN 1 0
1
0 00
1
0 01
1
0 10
1
0 11
1
1 00
1
1 01
1
1 10
1
1 11
SINGLE-ENDED CHANNEL SELECTION
0 1 2 3 4 5 COM
+
–
+
–
+
–
NOT USED
+
–
+
–
+–
NOT USED
1091-4 AI09
MUX ADDRESS
SGL/ ODD/ SELECT
DIFF SIGN 1 0
1 0 00
1 0 01
1 0 10
1 0 11
1 1 00
1 1 01
1 1 10
1 1 11
SINGLE-ENDED CHANNEL SELECTION
0 1 2 3 4 5 6 7 COM
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+–
1091-4 AI0
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