LTC1294CCSW#TR Linear Technology, LTC1294CCSW#TR Datasheet - Page 11
LTC1294CCSW#TR
Manufacturer Part Number
LTC1294CCSW#TR
Description
IC DATA ACQ SYS 12BIT 5V 20SOIC
Manufacturer
Linear Technology
Type
Data Acquisition System (DAS), ADCr
Datasheet
1.LTC1296CCSWPBF.pdf
(28 pages)
Specifications of LTC1294CCSW#TR
Resolution (bits)
12 b
Sampling Rate (per Second)
46.5k
Data Interface
Serial, Parallel
Voltage Supply Source
Dual ±
Voltage - Supply
±5V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
20-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Table 1a. LTC1294/6 Multiplexer Channel Selection
SGL/
DIFF
Unipolar/Bipolar (UNI)
The UNI bit determines whether the conversion will be
unipolar or bipolar. When UNI is a logical one, a unipolar
conversion will be performed on the selected input volt-
A
SGL/
Table 1b. LTC1293 Channel Selection
DIFF
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PPLICATI
MUX ADDRESS
MUX ADDRESS
SIGN
ODD
1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 0
0 0 0 0 0 0 0 0 0 0 0 1
0 0 0 0 0 0 0 0 0 0 0 0
SIGN
ODD
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
OUTPUT CODE
Unipolar Transfer Curve (UNI = 1)
SELECT
SELECT
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
1 0
•
•
•
1 0
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
O
DIFFERENTIAL CHANNEL SELECTION
U
0
+
–
INPUT VOLTAGE
0
+
–
S
V
V
DIFFERENTIAL CHANNEL SELECTION
REF
REF
–
+
1
1LSB
0V
– 1LSB
– 2LSB
I FOR ATIO
•
•
•
–
+
U
1
+
–
2
Not Used
Not Used
2
+
–
INPUT VOLTAGE
–
+
3
(VREF = 5V)
4.9988V
4.9976V
0.0012V
W
3
–
+
0V
•
•
•
4
+
–
LTC1293 AI03a
4
+
–
–
+
5
U
5
–
+
+
–
6
1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 0
0 0 0 0 0 0 0 0 0 0 0 1
0 0 0 0 0 0 0 0 0 0 0 0
SGL/
DIFF
7
–
+
1
1
1
1
1
1
1
1
MUX ADDRESS
SIGN
ODD
•
•
•
SGL/
DIFF
0
0
0
0
1
1
1
1
age. When UNI is a logical zero, a bipolar conversion will
result. The input span and code assignment for each
conversion type are shown in the figures below:
1
1
1
1
1
1
1
1
MUX ADDRESS
SELECT
SIGN
ODD
1 0
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
0
0
0
0
1
1
1
1
LTC1293/LTC1294/LTC1296
SELECT
Unipolar Output Code (UNI = 1)
1 0
0
0
1
1
0
0
1
1
0
+
0
1
0
1
0
1
0
1
SINGLE-ENDED CHANNEL SELECTION
1
+
0
+
SINGLE-ENDED CHANNEL SELECTION
+
1
2
+
Not Used
Not Used
2
+
3
+
3
+
4
+
+
4
+
5
+
5
+
6
COM
–
–
–
–
–
–
+
LTC1293 AI03b
7
11
129346fs
V
COM
IN
–
–
–
–
–
–
–
–