ADC0831-N, ADC0832-N, ADC0834-N, ADC0838-N

SNAS531B – AUGUST 1999 – REVISED MARCH 2013

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Table 3. MUX Addressing: ADC0838-N Differential MUX Mode

MUX Address

Analog Differential Channel-Pair #

SGL/

ODD/

SELECT

0

1

2

3

DIF

SIGN

1

0

0

1

2

3

4

5

6

7

0

0

0

0

+

−

0

0

0

1

+

−

0

0

1

0

+

−

0

0

1

1

+

−

0

1

0

0

−

+

0

1

0

1

−

+

0

1

1

0

−

+

0

1

1

1

−

+

Table 4. MUX Addressing: ADC0834-N Single-Ended MUX Mode

MUX Address

Channel #

SELECT

SGL / DIF

ODD / SIGN

0

1

2

3

1

1

0

0

+

1

0

1

+

1

1

0

+

1

1

1

+

Table 5. MUX Addressing: ADC0834-N Differential MUX Mode

MUX Address

Channel #

SELECT

SGL / DIF

ODD / SIGN

0

1

2

3

1

0

0

0

+

−

0

0

1

+

−

0

1

0

−

+

0

1

1

−

+

Table 6. MUX Addressing: ADC0832-N Single-Ended MUX Mode

MUX Address

Channel #

SGL / DIF

ODD / SIGN

0

1

1

0

+

1

1

+

Table 7. MUX Addressing: ADC0832-N Differential MUX Mode

MUX Address

Channel #

SGL / DIF

ODD / SIGN

0

1

0

0

+

−

0

1

−

+

Since the input configuration is under software control, it can be modified, as required, at each conversion. A

channel can be treated as a single-ended, ground referenced input for one conversion; then it can be

reconfigured as part of a differential channel for another conversion. Figure 22 illustrates the input flexibility which

can be achieved.

5V) without degrading conversion accuracy.

14

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