LTC1283ACN#PBF Linear Technology, LTC1283ACN#PBF Datasheet - Page 9

• Manufacturer Part Number: LTC1283ACN#PBF
• Description: IC DATA ACQ SYS 10BIT 3V 20-DIP
• Manufacturer: Linear Technology
• Type: Data Acquisition System (DAS)r

Specifications of LTC1283ACN#PBF

• Resolution (bits): 10 b
• Sampling Rate (per Second): 15k
• Data Interface: Serial, Parallel
• Voltage Supply Source: Dual ±
• Voltage - Supply: 3V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 20-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

A
Multiplexer (MUX) Address
The first four bits of the input word assign the MUX
configuration for the requested conversion. For a given
channel selection, the converter will measure the voltage
between the two channels indicted by the + and – signs in
the selected row of Table 1. Note that in differential mode
Table 1. Multiplexer Channel Selection
PPLICATI
SGL/
DIFF
0
0
0
0
0
0
0
0
MUX ADDRESS
0DD/
SIGN
0
0
0
0
1
1
1
1
CHANNEL
0,1
2,3
4,5
6,7
{
{
{
{
O
1
0
0
1
1
0
0
1
1
SELECT
U
4 Differential
S
+
–
+
–
+
–
+
–
0
0
1
0
1
0
1
0
1
(
(
(
(
(
(
(
(
–
+
–
+
–
+
–
+
)
)
)
)
)
)
)
)
I FOR ATIO
DIFFERENTIAL CHANNEL SELECTION
U
0
+
–
4,5
6,7
{
{
1
–
+
Figure 1. Examples of Multiplexer Options on the LTC1283
1ST CONVERSION
2
+
–
+
+
–
–
COM (UNUSED)
W
3
–
+
Changing the MUX Assignment “On the Fly”
4
+
–
CHANNEL
5
–
+
U
0
1
2
3
4
5
6
7
6
+
–
8 Single-Ended
+
+
+
+
+
+
+
+
COM (
7
–
+
–
)
SGL/
DIFF
(SGL/DIFF = 0) measurements are limited to four adjacent
input pairs with either polarity. In single-ended mode, all
input channels are measured with respect to COM. Figure
1 shows some examples of multiplexer assignments.
1
1
1
1
1
1
1
1
5,4
6
7
MUX ADDRESS
{
{
0DD/
SIGN
0
0
0
0
1
1
1
1
2ND CONVERSION
COM (
–
+
+
+
1
0
0
1
1
0
0
1
1
SELECT
–
Combinations of Differential and Single-Ended
)
0
0
1
0
1
0
1
0
1
CHANNEL
0,1
2,3
LTC1283 • F01
0
+
SINGLE-ENDED CHANNEL SELECTION
4
5
6
7
{
{
1
+
+
–
–
+
+
+
+
+
COM (
2
+
–
3
+
)
4
+
5
+
LTC1283
6
+
7
+
COM
–
–
–
–
–
–
–
–
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