Key facts
- Brand
- Analog Devices
- Model
- AD7148
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-09
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Analog Devices AD7148 Capacitive Touch Controller Datasheet
The AD7148 is a programmable capacitance‑to‑digital converter designed for single‑electrode touch sensors such as buttons, scroll bars, and wheels. It provides eight sensor inputs, on‑chip automatic calibration, and a serial I²C‑compatible interface with a configurable voltage level.
The device operates from 2.6 V to 3.6 V, offers a 16‑bit resolution and ~25 ms update rate, and is available in a 16‑lead 4 mm × 4 mm LFCSP package. Detailed specifications, pin descriptions, timing diagrams, and ordering information are included.
Analog Devices AD7148 specifications
| Update Rate | ≈25 ms |
|---|---|
| Resolution | 16 bits |
| Capacitance Sensor Input Range (CINx) | +8 pF |
| Operating Temperature Range | ‑40 °C to +85 °C |
| Package | 16‑lead 4 mm × 4 mm LFCSP |
Source: Analog Devices AD7148 Capacitive Touch Controller Datasheet
All Analog Devices AD7148 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
How many capacitance sensor inputs are available on the AD7148?
The device provides eight capacitance sensor inputs.
From: Analog Devices AD7148 Capacitive Touch Controller Datasheet
What supply voltage range does the AD7148 support?
The AD7148 operates from 2.6 V to 3.6 V.
How many capacitance sensor inputs are available?
The device provides eight capacitance sensor inputs.