Key facts
- Brand
- Analog Devices
- Model
- AD5251
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-05-09
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Analog Devices AD5251/AD5252 Digital Potentiometer Datasheet
The AD5251 (64‑position) and AD5252 (256‑position) are dual‑channel, I²C‑compatible digital potentiometers that replace mechanical potentiometers, trimmers, and variable resistors. They provide programmable resistance settings, non‑volatile memory for wiper positions, and commands for increment, decrement, and ±6 dB step changes, with both synchronous and asynchronous update modes.
Typical applications include LCD panel Vcom adjustment, white LED brightness control, RF base‑station power‑amp bias, sensor calibrations, and programmable gain or offset circuits. The devices are offered in TSSOP‑14 packages with resistance options of 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ, and are qualified for industrial temperature ranges.
Analog Devices AD5251 specifications
| Resolution | 64 positions (AD5251) / 256 positions (AD5252) |
|---|---|
| Supply Voltage (single‑supply) | 2.7 V to 5.5 V |
| Supply Voltage (dual‑supply) | +2.25 V to +2.75 V |
| Operating Temperature Range | -40 °C to +85 °C |
| Data Retention | Typical 100 years (at 55 °C) |
Source: Analog Devices AD5251/AD5252 Digital Potentiometer Datasheet
All Analog Devices AD5251 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the resolution of the AD5251 and AD5252?
The AD5251 provides 64 programmable positions, while the AD5252 provides 256 positions.
From: Analog Devices AD5251/AD5252 Digital Potentiometer Datasheet
What supply voltage ranges do these devices support?
They operate from a single supply of 2.7 V to 5.5 V, or from dual supplies of +2.25 V to +2.75 V.
From: Analog Devices AD5251/AD5252 Digital Potentiometer Datasheet
What is the resolution of the AD5251 and AD5252?
The AD5251 provides 6‑bit resolution (64 steps) and the AD5252 provides 8‑bit resolution (256 steps).
From: Analog Devices AD5251/AD5252 Digital Potentiometer Datasheet
What supply voltage range do the devices support?
They operate from a single supply of 2.7 V to 5.5 V, or from dual supplies of +2.25 V to +2.75 V.
From: Analog Devices AD5251/AD5252 Digital Potentiometer Datasheet
How many positions does the AD5251 provide?
The AD5251 provides 64 discrete positions.