Rainbow Electronics ADC12138 - Manual (Page 24)

Tables
TABLE I Data Out Formats
DO Formats DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 DB8 DB9 DB10 DB11 DB12 DB13 DB14 DB15 DB16
Sign
with
MSB
First
17
X X X X Sign MSB 10 9 8 7 6 5 4 3 2 1 LSB
Bits
13
Sign MSB 10 9 8 7 6 5 4 3 2 1 LSB
Bits
First
LSB
17
LSB 1 2 3 4 5 6 7 8 9 10 MSB Sign X X X X
Bits
13
LSB 1 2 3 4 5 6 7 8 9 10 MSB Sign
Bits
without
Sign
MSB
First
16
0 0 0 0 MSB 10 9 8 7 6 5 4 3 2 1 LSB
Bits
12
MSB 10 9 8 7 6 5 4 3 2 1 LSB
Bits
First
LSB
16
LSB 1 2 3 4 5 6 7 8 9 10 MSB 0 0 0 0
Bits
12
LSB 1 2 3 4 5 6 7 8 9 10 MSB
Bits
X e High or Low state
TABLE II ADC12138 Multiplexer Addressing
Analog Channel Addressed
A D Input
Multiplexer
Mode
MUX and Assignment
Polarity
Output
Address with A DIN1 tied to MUXOUT1
Assignment
Channel
and A DIN2 tied to MUXOUT2 Assignment
DI0 DI1 DI2 DI3 CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 COM A DIN1 A DIN2 MUXOUT1 MUXOUT2
L L L L a b a b CH0 CH1
L L L H a b a b CH2 CH3
L L H L a b a b CH4 CH5
L L H H a b a b CH6 CH7
Differential
L H L L b a b a CH0 CH1
L H L H b a b a CH2 CH3
L H H L b a b a CH4 CH5
L H H H b a b a CH6 CH7
H L L L a b a b CH0 COM
H L L H a b a b CH2 COM
H L H L a b a b CH4 COM
H L H H a b a b CH6 COM
Single-Ended
H H L L a b a b CH1 COM
H H L H a b a b CH3 COM
H H H L a b a b CH5 COM
H H H H a b a b CH7 COM
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