AD8188/AD8189

Rev. 0 | Page 6 of 24

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

1

24

2

23

3

22

4

21

5

20

6

19

7

18

8

17

9

16

10

15

11

14

12

13

AD8188/

AD8189

TOP VIEW

(Not to Scale)

OUT2

OUT1

OUT0

OE

IN0A

IN0B

IN1B

IN2B

IN2A

IN1A

SEL A/B

Figure 4. AD8188/AD8189 Pin Configuration

Table 4. Pin Function Descriptions

Pin No.

Mnemonic

Description

1

IN0A

2

Ground Reference for Digital Control Circuitry.

3

IN1A

4

AD8188: Bypass point for internal reference. Does not affect dc level of output.

AD8189: Input to reference buffers for all channels. Can be used to offset the outputs.

5

IN2A

6, 13, 17, 21, 24

7, 9, 11, 15, 19

Negative Analog Supply.

8

IN2B

10

IN1B

12

IN0B

14

16

OUT2

Output. Can connect to IN2A, IN2B, or disable.

18

OUT1

Output. Can connect to IN1A, IN1B, or disable.

20

OUT0

Output. Can connect to IN0A, IN0B, or disable.

22

SEL A/B

Logic high selects the three A inputs. Logic low selects the three B inputs.

23

OE

Output Enable. Logic high enables the three outputs.

Table 5. Truth Table

SEL A/B

OE

OUT

0

0

High-Z

1

0

High-Z

1

1

INxA

0

1

INxB