DS1803 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
MFG CO.
'DS1803' PDF : 11 Pages View PDF
DS1803
Addressable Dual Digital Potentiometer
www.maxim-ic.com
FEATURES
3V or 5V Operation
Ultra-Low Power Consumption
Two Digitally Controlled, 256-Position
Potentiometers
14-Pin TSSOP (173 mil) and 16-Pin SO (150
mil) Packaging Available for Surface-Mount
Applications
Addressable Using 3 Address Inputs
2-Wire Serial Interface
Operating Temperature Range:
- Industrial: -40°C to +85°C
Standard Resistance Values:
- DS1803-010 10kΩ
- DS1803-050 50kΩ
- DS1803-100 100kΩ
PIN DESCRIPTION
L0, L1
- Low End of Resistor
H0, H1
- High End of Resistor
W0,W1
- Wiper terminal of Resistor
VCC
- 3V/5V Power Supply Input
A0, A1, A2 - Chip Select Inputs
SDA
- Serial Data I/O
SCL
- Serial Clock Input
GND
- Ground
NC
- No Connection
PIN ASSIGNMENT
H1 1
L1 2
W1 3
A2 4
A1 5
A0 6
GND 7
14 VCC
13 NC
12 H0
11 L0
10 W0
9 SDA
8 SCL
DS1803 14-PIN TSSOP (173 MIL)
H1 1
NC 2
L1 3
W1 4
A2 5
A1 6
A0 7
GND 8
16 VCC
15 NC
14 H0
13 L0
12 W0
11 NC
10 SDA
9 SCL
DS1803Z 16-PIN SO (150 MIL)
DS1803 16-PIN DIP (300 MIL)
See Mech. Drawings Section on Website
DESCRIPTION
The DS1803 addressable dual digital potentiometer features two independently controlled 256-position
potentiometers. Device control is achieved through a 2-wire serial interface. Three address pins allow up
to 8 DS1803’s to share the same 2-wire interface. The exact wiper position of each potentiometer can be
written or read. The DS1803 is available in a 16-pin DIP, 16-pin SO, and 14-pin TSSOP package. The
device is available in three standard resistance values: 10kΩ, 50kΩ, and 100kΩ and is specified over the
industrial temperature range.
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