Datasheet

AD5123/AD5143 Data Sheet
Rev. A | Page 12 of 28
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
NOTES
1. INTERNALLY CONNECT THE
EXPOSED PAD TO V
SS
.
AD5123/
AD5143
TOP VIEW
(Not to Scale)
PIN 1
INDIC
AT
OR
1A1
2
W1
3
B1
4
W3
11 B4
12 V
DD
10 W4
9 B2
ADDR
GND SDA
SCL
5
B3
6
V
SS
7
A2
8
W2
15 16
14
13
10878-004
Figure 4. Pin Configuration
Table 7. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
A1
Terminal A of RDAC1. V
SS
≤ V
A
≤ V
DD
.
2
W1
Wiper Terminal of RDAC1. V
SS
≤ V
W
≤ V
DD
.
3 B1 Terminal B of RDAC1. V
SS
≤ V
B
≤ V
DD
.
4 W3 Wiper Terminal of RDAC3. V
SS
≤ V
W
≤ V
DD
.
5 B3 Terminal B of RDAC3. V
SS
≤ V
B
≤ V
DD
.
6 V
SS
Negative Power Supply. Decouple this pin with 0.1 µF ceramic capacitors and 10 µF capacitors.
7 A2 Terminal A of RDAC2. V
SS
≤ V
A
≤ V
DD
.
8 W2 Wiper Terminal of RDAC2. V
SS
≤ V
W
≤ V
DD
.
9 B2 Terminal B of RDAC2. V
SS
≤ V
B
≤ V
DD
.
10 W4 Wiper Terminal of RDAC4. V
SS
≤ V
W
≤ V
DD
.
11 B4 Terminal B of RDAC4. V
SS
≤ V
B
≤ V
DD
.
12 V
DD
Positive Power Supply. Decouple this pin with 0.1 µF ceramic capacitors and 10 µF capacitors.
13
SCL
Serial Clock Line. Data is clocked in at the logic low transition.
14 SDA Serial Data Input/Output.
15 ADDR Programmable Address for Multiple Package Decoding.
16 GND Ground Pin, Logic Ground Reference.
EPAD Internally Connect the Exposed Paddle to V
SS
.