LTC1294 LINER [Linear Technology], LTC1294 Datasheet - Page 11
![no-image](/images/no-image-200.jpg)
LTC1294
Manufacturer Part Number
LTC1294
Description
Single Chip 12-Bit Data Acquisition System
Manufacturer
LINER [Linear Technology]
Datasheet
1.LTC1294.pdf
(28 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LTC1294BCSW
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Company:
Part Number:
LTC1294DCN#PBF
Manufacturer:
LT
Quantity:
421
Company:
Part Number:
LTC1294DCSW#PBF
Manufacturer:
NXP
Quantity:
10 102
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
1
1
0
0
1
1
1 0
•
•
•
1 0
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
0
1
0
1
0
1
0
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
1
1
1
1
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:
MUX ADDRESS
SELECT
SIGN
ODD
1 0
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
1
0
1
0
1
0
1
0
1
LTC1293/LTC1294/LTC1296
SELECT
Unipolar Output Code (UNI = 1)
1 0
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
0
+
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
V
COM
IN
–
–
–
–
–
–
–
–