Datasheet

AD5203
–4– REV. 0
PIN FUNCTION DESCRIPTIONS
Pin
No. Name Description
1 AGND2 Analog Ground #2*
2 B2 B Terminal RDAC #2
3 A2 A Terminal RDAC #2
4 W2 Wiper RDAC #2, addr = 01
2
5 AGND4 Analog Ground #4*
6 B4 B Terminal RDAC #4
7 A4 A Terminal RDAC #4
8 W4 Wiper RDAC #4, addr = 11
2
9 DGND Digital Ground*
10 SHDN Active Low Input. Terminal A open circuit.
Shutdown controls Variable Resistors #1
through #4.
11 CS Chip Select Input, Active Low. When CS
returns high data in the serial input register
is decoded based on the address bits and
loaded into the target DAC register.
12 SDI Serial Data Input
13 SDO Serial Data Output. Open drain transistor
requires pull-up resistor.
14 CLK Serial Clock Input, positive edge triggered.
15 RS Active low reset to midscale; sets RDAC
registers to 20
H
.
16 V
DD
Positive power supply, specified for opera-
tion at both +3 V and +5 V.
17 AGND3 Analog Ground #3*
18 W3 Wiper RDAC #3, addr =10
2
19 A3 A Terminal RDAC #3
20 B3 B Terminal RDAC #3
21 AGND1 Analog Ground #1*
22 W1 Wiper RDAC #1, addr = 00
2
23 A1 A Terminal RDAC #1
24 B1 B Terminal RDAC #1
*All AGNDs must be connected to DGND voltage potential.
ORDERING GUIDE
Model k⍀ Temperature Range Package Descriptions Package Options
AD5203AN10 10 –40°C to +85°C 24-Lead Narrow Body Plastic DIP N-24
AD5203AR10 10 –40°C to +85°C 24-Lead Wide Body (SOIC) SOL-24
AD5203ARU10 10 –40°C to +85°C 24-Lead Thin Surface Mount Package (TSSOP) RU-24
AD5203AN100 100 –40°C to +85°C 24-Lead Narrow Body Plastic DIP N-24
AD5203AR100 100 –40°C to +85°C 24-Lead Wide Body (SOIC) SOL-24
AD5203ARU100 100 –40°C to +85°C 24-Lead Thin Surface Mount Package (TSSOP) RU-24
PIN CONFIGURATION
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
AD5203
SDI
CS
SHDN
DGND
W4
AGND2
B2
A2
W2
A4
B4
AGND4
SDO
CLK
RS
V
DD
AGND3
B1
A1
W1
AGND1
W3
A3
B3
(Not to Scale)