ADC12034 National Semiconductor Corporation, ADC12034 Datasheet - Page 28

• Manufacturer Part Number: ADC12034
• Description: Self-calibrating 12-bit Plus Sign Serial I/o A/d Converters With Mux And Sample/hold
• Manufacturer: National Semiconductor Corporation

www.national.com
DI0 DI1 DI2 DI3 CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 CO
H
H
H
H
H
H
H
H
DI0
L
L
L
L
L
L
L
L
H
H
H
H
L
L
L
L
MUX Address
MUX Address
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
DI1
H
H
H
H
L
L
L
L
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
DI2
H
H
H
H
L
L
L
L
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
CH0
+
−
+
+
−
+
with A/DIN1 tied to MUXOUT1
and A/DIN2 tied to MUXOUT2
Analog Channel Addressed
−
+
+
CH1
and Assignment
−
+
+
with A/DIN1 tied to MUXOUT1
and A/DIN2 tied to MUXOUT2
Analog Channel Addressed
+
−
+
CH2
and Assignment
+
−
+
−
+
+
TABLE 2. ADC12038 Multiplexer Addressing
TABLE 3. ADC12034 Multiplexer Addressing
CH3
+
−
+
−
+
+
−
+
+
COM
−
−
−
−
+
−
+
A/DIN1
A/D Input Polarity
28
−
+
+
+
+
−
−
+
+
+
+
Assignment
M
−
−
−
−
−
−
−
−
A/DIN2
A/DIN1 A/DIN2 MUXOUT
−
−
+
+
−
−
−
−
Assignment
A/D Input
+
+
+
+
−
−
−
−
+
+
+
+
+
+
+
+
Polarity
MUXOUT1
Channel Assignment
−
−
−
−
+
+
+
+
−
−
−
−
−
−
−
−
Multiplexer Output
CH0
CH2
CH0
CH2
CH0
CH2
CH1
CH3
Multiplexer Output
CH0
CH2
CH4
CH6
CH0
CH2
CH4
CH6
CH0
CH2
CH4
CH6
CH1
CH3
CH5
CH7
1
Assignment
Channel
MUXOUT2
COM
COM
COM
COM
CH1
CH3
CH1
CH3
MUXOUT
COM
COM
COM
COM
COM
COM
COM
COM
CH1
CH3
CH5
CH7
CH1
CH3
CH5
CH7
2
Single-Ended
Differential
Single-Ended
Differential
Mode
Mode