Key facts
- Brand
- Analog Devices
- Model
- AD5228
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-06-07
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Analog Devices AD5228 Digital Potentiometer Datasheet
The AD5228 is a 32-step-up/step-down control digital potentiometer designed to emulate mechanical potentiometer operation. It features simple manual up/down control using just two external pushbutton tactile switches, including a built-in adaptive debouncer for contact bounce immunity.
Available in 10 kΩ, 50 kΩ, and 100 kΩ end-to-end terminal resistance versions, the device operates over an automotive temperature range of -40°C to +105°C. It is housed in a compact thin SOT-23-8 (TSOT-8) Pb-free package and offers low operating voltage from 2.7 V to 5.5 V.
Analog Devices AD5228 specifications
| Resolution | 5 Bits (32 steps) |
|---|---|
| Operating voltage range | 2.7 V to 5.5 V |
| Temperature range | -40°C to +105°C |
| Package type | SOT-23-8 (TSOT-8) |
| Supply standby current | 0.4 pA typical, 3 pA max |
Source: Analog Devices AD5228 Digital Potentiometer Datasheet
All Analog Devices AD5228 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
How many external switches are required for manual control?
The AD5228 requires only two pushbutton tactile switches for simple manual up/down control.
What is the function of the built-in debouncer?
The built-in adaptive debouncer ignores invalid bounces due to contact bounce commonly found in mechanical switches.
How is the AD5228 controlled manually?
It uses two external push‑button tactile switches for up and down functions, with a built‑in adaptive debouncer to ignore contact bounce.
What does the autoscan mode do?
When a push‑button is held for more than one second, the device enters autoscan mode and changes the resistance by four steps per second.
How many discrete steps does the AD5228 provide?
The AD5228 provides 32 discrete steps.
What is the operating voltage range for the AD5228?
It operates from 2.7 V to 5.5 V.