AD8143

Data Sheet

Rev. A | Page 10 of 24

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

24 GND

23 OUT_B

22 OUT_G

21 OUT_R

19 COMPB_IN+

18 COMPB_IN–

17 GND

1

2

3

4

5

6

7

8

GND

REF_G

FB_G

IN+_G

IN–_G

REF_R

FB_R

GND

AD8143

TOP VIEW

(Not to Scale)

NOTES

1. THE EXPOSED PAD ON THE UNDERSIDE OF THE

DEVICE MUST BE CONNECTED TO GROUND.

Figure 3. Pin Configuration

Table 6. Pin Function Descriptions

Pin No.

Mnemonic

Description

1, 8, 9,16, 17, 24, 25, 32

GND

Signal Ground and Thermal Plane Connection (See the Applications Information Section)

2

REF_G

Reference Input, Green Channel

3

FB_G

Feedback Input, Green Channel

4

IN+_G

Noninverting Input, Green Channel

5

IN−_G

Inverting Input, Green Channel

6

REF_R

Reference Input, Red Channel

7

FB_R

Feedback Input, Red Channel

10

IN+_R

Noninverting Input, Red Channel

11

IN−_R

Inverting Input, Red Channel

12

COMPA_IN+

Positive Input, Comparator A

13

COMPA_IN−

Negative Input, Comparator A

14

COMPA_OUT

Output, Comparator A

15

COMPB_OUT

Output, Comparator B

18

COMPB_IN−

Negative Input, Comparator B

19

COMPB_IN+

Positive Input, Comparator B

20

Positive Power Supply

21

OUT_R

Output, Red Channel

22

OUT_G

Output, Green Channel

23

OUT_B

Output, Blue Channel

26

Negative Power Supply

27

DIS/PD

Disable/Power Down

28

REF_B

Reference Input, Blue Channel

29

FB_B

Feedback Input, Blue Channel

30

IN+_B

Noninverting Input, Blue Channel

31

IN−_B

Inverting Input, Blue Channel

0

EPAD

Exposed Pad. The exposed pad on the underside of the device must be connected to

ground (see the Applications Information section).