Rainbow Electronics ADC12038 - Manual (Page 30)

Application Hints
(Continued)
With the single-ended multiplexer configuration CH0
through CH7 can be assigned to the MUXOUT1 pin The
COM pin is always assigned to the MUXOUT2 pin A DIN1
is assigned as the positve input A DIN2 is assigned as the
negative input (See
Figure 8 )
Differential
Configuration
TL H 11354 – 40
A DIN1 and A DIN2 can be as-
signed as the
a or b input
FIGURE 8
Single-Ended
Configuration
TL H 11354 – 41
A DIN1 is a input
A DIN2 is b input
The Multiplexer assignment tables for the ADC12030 2 4 8
(Tables II III and IV) summarize the aforementioned func-
tions for the different versions of A Ds
2 1 Biasing for Various Multiplexer Configurations
Figure 9 is an example of biasing the device for single-end-
ed operation The sign bit is always low The digital output
range is 0 0000 0000 0000 to 0 1111 1111 1111 One LSB
is equal to 1 mV (4 1V 4096 LSBs)
TL H 11354 – 46
FIGURE 9 Single-Ended Biasing
30