Key facts
- Brand
- Analog Devices
- Model
- AD7151
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-06-07
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ANALOG DEVICES AD7151 Ultra-Low Power 1-Channel Capacitance Converter for Proximity Sensing handbook
The AD7151 is a complete signal processing solution for capacitive proximity sensors. It features an ultra-low power consumption of 70 pA and offers two modes of operation: standalone with fixed settings or interfaced to a microcontroller via a serial interface for user-defined configurations.
The device utilizes Analog Devices' capacitance-to-digital converter (CDC) technology, providing high input sensitivity and tolerance for parasitic ground capacitance. It includes an integrated adaptive threshold algorithm that compensates for variations in sensor capacitance caused by environmental factors such as humidity and temperature.
Analog Devices AD7151 specifications
| Supply Voltage Range | 2.7 V to 3.6 V |
|---|---|
| Operating Temperature Range | -40°C to +85°C |
| Conversion Time | 10 ms |
| Input Capacitance Range (Max) | 4 pF |
| Resolution (for 4 pF range) | 2.0 fF |
Source: ANALOG DEVICES AD7151 Ultra-Low Power 1-Channel Capacitance Converter for Proximity Sensing handbook
All Analog Devices AD7151 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
How does the AD7151 handle environmental changes?
It features an integrated adaptive threshold algorithm that compensates for variations due to humidity, temperature, or dielectric material changes.
From: ANALOG DEVICES AD7151 Ultra-Low Power 1-Channel Capacitance Converter for Proximity Sensing handbook
Can the AD7151 be programmed by a microcontroller?
Yes, it can be interfaced to a microcontroller via a 2-wire serial interface (I²C compatible) for user-defined settings.
From: ANALOG DEVICES AD7151 Ultra-Low Power 1-Channel Capacitance Converter for Proximity Sensing handbook
What supply voltage range does the AD7151 require?
The AD7151 operates from 2.7 V to 3.6 V.
How long does a conversion take?
A single conversion is completed in 10 ms.
What is the supply voltage range of the AD7151?
The device operates from 2.7 V to 3.6 V.
From: Analog Devices AD7151 Capacitive Proximity Sensor Datasheet
How fast does the AD7151 convert a measurement?
The conversion time is 10 ms.
From: Analog Devices AD7151 Capacitive Proximity Sensor Datasheet