Key facts
- Brand
- Analog Devices
- Model
- AD7156
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-09
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Analog Devices AD7156 Capacitive Converter Datasheet
The AD7156 delivers a complete signal‑processing solution for capacitive sensors, offering ultralow power consumption, fast response, and adaptive environmental compensation. It operates from 1.8 V to 3.6 V and supports two independent capacitance input channels, each providing a digital detection output.
The device can be used in standalone mode with fixed settings or interfaced to a microcontroller via a 2‑wire I²C‑compatible serial interface for programmable operation. Detailed specifications, pin descriptions, timing diagrams, and application examples are provided in the datasheet.
Analog Devices AD7156 specifications
| Supply voltage | 1.8 V to 3.6 V |
|---|---|
| Power‑down current | 2 µA typical |
| Conversion time per channel | 10 ms |
| Sensor capacitance range | 0 pF to 13 pF |
| Sensitivity | up to 3 fF |
| Operating temperature | −40 °C to +85 °C |
| Package | 10‑lead LFCSP (3 mm × 3 mm × 0.8 mm) |
| Output low voltage (V OL) | 0.4 V |
| Output high voltage (V OH) | VDD – 0.6 V |
Source: Analog Devices AD7156 Capacitive Converter Datasheet
All Analog Devices AD7156 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What supply voltage range does the AD7156 support?
The AD7156 operates from 1.8 V up to 3.6 V.
How many capacitance input channels are available?
The device provides two independent capacitance input channels.
What supply voltage range does the AD7156 support?
The AD7156 operates from 1.8 V to 3.6 V.
How many capacitance input channels are available?
The device provides two capacitance input channels.