Datasheet

Data Sheet AD5263
Rev. F | Page 7 of 28
PIN CONFIGURATION AND PIN FUNCTION DESCRIPTIONS
B1
1
A1
2
W1
3
B3
4
A3
5
B2
A2
W2
B4
A4
24
23
22
21
20
6
7
8
9
10
19
18
17
16
15
11
12
14
13
W3
V
DD
GND
DIS
V
LOGIC
W4
V
SS
NC/O2
SDO/O1
SHDN
SDI/SDA
CLK/SCL
RES/AD1
CS/AD0
AD5263
TOP VIEW
(Not to Scale)
03142-072
Figure 2. Pin Configuration
Table 4. Pin Function Descriptions
Pin
Name
Description
1 B1 Resistor Terminal B1.
2 A1 Resistor Terminal A1 (ADDR = 00).
3 W1 Wiper Terminal W1.
4 B3 Resistor Terminal B3.
5 A3 Resistor Terminal A3.
6 W3 Wiper Terminal W3 (ADDR = 10).
7 V
DD
Positive Power Supply, specified for +5 V to +15 V operation.
8 GND Ground.
9 DIS Digital Interface Select (SPI/I
2
C Select). SPI when DIS = 0, I
2
C when DIS = 1
10 V
LOGIC
2.7 V to 5.5 V Logic Supply Voltage. The logic supply voltage should always be less than or equal to V
DD
. In addition, logic
levels must be limited to the logic supply voltage regardless of V
DD
.
11 SDI/SDA SDI = 3-Wire Serial Data Input. SDA = 2-Wire Serial Data Input/Output.
12 CLK/SCL Serial Clock Input.
13
CS
/AD0
Chip Select in SPI Mode. Device Address Bit 0 in I
2
C Mode.
14
RES
/AD1
RESET in SPI Mode. Device Address Bit 1 in I
2
C Mode.
15
SHDN
Shutdown. Shorts wiper to Terminal B, opens Terminal A. Tie to +5 V supply if not used. Do not tie to V
DD
if V
DD
> 5 V.
16 SDO/O1 Serial Data Output in SPI Mode. Open-drain transistor requires pull-up resistor.
Digital Output O1 in I
2
C Mode. Can be used to drive external logic.
17 NC/O2 No Connection in SPI Mode. Digital Output O2 in I
2
C Mode. Can be used to drive external logic.
18 V
SS
Negative Power Supply. Specified for operation from 0 V to –5 V.
19 W4 Wiper Terminal W4 (ADDR = 11).
20 A4 Resistor Terminal A4.
21 B4 Resistor Terminal B4.
22 W2 Wiper Terminal W2 (ADDR = 01).
23 A2 Resistor Terminal A2.
24 B2 Resistor Terminal B2.