Key facts
- Brand
- Maxim
- Model
- DS1803
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-04-12
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Maxim DS1803 Dual Digital Potentiometer Datasheet
The DS1803 is an addressable dual digital potentiometer featuring two independently controlled 256‑position resistor arrays. It operates via a 2‑wire serial interface and supports up to eight devices on the same bus using three address pins. The device is available in 10 kΩ, 50 kΩ, and 100 kΩ resistance options and in 14‑pin TSSOP, 16‑pin SO, and 16‑pin DIP packages.
Electrical specifications include a supply voltage range of 2.7 V to 5.5 V, an operating temperature range of –40 °C to +85 °C, and typical wiper resistance between 400 Ω and 1 kΩ. The datasheet also provides timing diagrams, command protocols for reading and writing potentiometer values, and ordering information for various package and resistance variants.
Maxim DS1803 specifications
| Supply Voltage (VCC) | 2.7 V – 5.5 V |
|---|---|
| Operating Temperature | -40 °C to +85 °C |
| Package Types | 14‑Pin TSSOP, 16‑Pin SO, 16‑Pin DIP |
| Standard Resistance Values | 10 kΩ, 50 kΩ, 100 kΩ |
| Wiper Resistance | 400 Ω – 1 kΩ |
All Maxim DS1803 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
How many DS1803 devices can share the same 2‑wire interface?
Up to eight DS1803 devices can share the same 2‑wire interface using the three address pins.
Does the DS1803 retain its wiper position after power loss?
No, the DS1803 is a volatile device and does not maintain the wiper position during power‑down.
How many DS1803 devices can share the same 2‑wire bus?
Up to eight DS1803 devices can be addressed on a single 2‑wire serial bus.
From: Maxim Integrated DS1803 Dual Digital Potentiometer Datasheet
What supply voltage range is required for the DS1803?
The device requires a supply voltage between 2.7 V and 5.5 V.
From: Maxim Integrated DS1803 Dual Digital Potentiometer Datasheet
How many address inputs does the DS1803 have?
The DS1803 has three address inputs (AO, A1, A2) that allow up to eight devices to share the same 2‑wire interface.
From: Maxim DS1803 Addressable Dual Digital Potentiometer Datasheet
What communication interface does the DS1803 use?
It uses a 2‑wire serial interface consisting of SDA (data) and SCL (clock) lines.
From: Maxim DS1803 Addressable Dual Digital Potentiometer Datasheet