AD5170

Rev. A | Page 17 of 24

13

25

12

24

11

23

10

22

9

21

8

20

7

19

6

18

5

17

4

16

3

15

2

14

1

SCL

R3

100

Ω

R2

100

Ω

R1

100

Ω

SDA

READ

WRITE

Figure 42. Parallel Port Connection. Pin 2 = SDA_write, Pin 3 = SCL,

Pin 15 = SDA_read, and Pin 25 = DGND.

AD5170

B

A

AD0

GND

VDD

W

NC

AD1

SDA

SCL

Figure 43. Recommended AD5170 PCB Layout. The SCL and SDA pads allow

pogo pins to be inserted so that signals can be communicated through the

parallel port for programming (Figure 42).