12-11

If shorted sensors are possible, a series resistor in series

with the D line will limit the current (shown as R, above: only

one is needed). A six-bit digital word will select one of 64

sensors.

AD590 (64)

+15V

(OPTIONAL)

R

8

13

D

GND V-

7

6

5

14

3

2

1

0

15

16

1

2

COLUMN

SELECT

ENABLE +15V

ROW

SELECT

ENABLE

HI-0548

8-CHANNEL

MUX

V-

GND

3

14

HI-0548

8-CHANNEL

MUX

4

76

5

3

2

1

0

4

3

9

10

11

12

7

6

5

4

10k

Ω 0.1%

15 16 1

2

(OPTIONAL)

R

910

11

12

7

6

4

5

8

13

0

1

2

D

FIGURE 17. MULTIPLEXING SENSORS

AD590