adc12032 National Semiconductor Corporation, adc12032 Datasheet - Page 25

• Manufacturer Part Number: adc12032
• Description: Self-calibrating 12-bit Plus Sign Serial I/o A/d Converters With Mux And Sample/hold
• Manufacturer: National Semiconductor Corporation

DI0 DI1 DI2 DI3 CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 COM A/DIN1 A/DIN2 MUXOUT1 MUXOUT2
without
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
Sign
Tables
X = High or Low state.
DO Formats
Address
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
MUX
MSB
First Bits
First Bits
LSB
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
(Continued)
Bits
Bits
Bits
Bits
H
H
H
H
H
H
H
H
16
12
16
12
L
L
L
L
L
L
L
L
8
8
MSB
MSB
DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 DB8 DB9 DB10 DB11 DB12 DB13 DB14 DB15 DB16
LSB
LSB
LSB
+
−
+
0
−
+
+
10
0
6
1
1
1
with A/DIN1 tied to MUXOUT1
and A/DIN2 tied to MUXOUT2
Analog Channel Addressed
+
−
+
0
9
5
2
2
2
and Assignment
−
+
+
0
8
4
3
3
3
TABLE 2. ADC12038 Multiplexer Addressing
TABLE 1. Data Out Formats (Continued)
MSB
+
−
+
7
3
4
4
4
−
+
+
10
6
2
5
5
5
+
−
+
9
5
1
6
6
6
MSB
LSB
−
+
+
25
8
4
7
7
−
−
−
−
−
−
−
−
7
3
8
8
Assignment
A/D Input
+
+
+
+
−
−
−
−
+
+
+
+
+
+
+
+
6
2
9
9
Polarity
10
10
5
1
−
−
−
−
+
+
+
+
−
−
−
−
−
−
−
−
MSB
MSB
LSB
4
CH0
CH2
CH4
CH6
CH0
CH2
CH4
CH6
CH0
CH2
CH4
CH6
CH1
CH3
CH5
CH7
Assignment
Multiplexer
3
0
Channel
Output
2
0
COM
COM
COM
COM
COM
COM
COM
COM
CH1
CH3
CH5
CH7
CH1
CH3
CH5
CH7
1
0
Single-Ended
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Differential
LSB
0
Mode