CDC Boosts Touch Sensitivity

July 2, 2007
Promising improved responsiveness in user interface controls, the AD7147 capacitance-to-digital converter (CDC) allows users to quickly add responsive user controls such as scroll wheels and touch pads to portable products. The device features 13

Promising improved responsiveness in user interface controls, the AD7147 capacitance-to-digital converter (CDC) allows users to quickly add responsive user controls such as scroll wheels and touch pads to portable products. The device features 13 capacitance inputs with femto-Farad resolution, allowing users to implement up to 36 buttons per device. Integrated active shield technology protects the chip from capacitance-to-ground pickup and other noise sources. Improvement to its analog front-end yields a threefold improvement in sensor response compared to previous AD714x devices. The AD7147 typically consumes 1 mA in full power mode, 50 µA in low-power mode, and 2 µA in shutdown. The AD7147 includes a SPI-compatible interface while the AD7147-1 provides an I2C interface. Both devices are sampling now and will be available in full production quantities in July. Price is $1.30 each/1,000. ANALOG DEVICES, INC., Norwood, MA. (800) 426-2564.

Company: ANALOG DEVICES, INC.

Product URL: Click here for more information

Sponsored Recommendations

Highly Integrated 20A Digital Power Module for High Current Applications

March 20, 2024
Renesas latest power module delivers the highest efficiency (up to 94% peak) and fast time-to-market solution in an extremely small footprint. The RRM12120 is ideal for space...

Empowering Innovation: Your Power Partner for Tomorrow's Challenges

March 20, 2024
Discover how innovation, quality, and reliability are embedded into every aspect of Renesas' power products.

Article: Meeting the challenges of power conversion in e-bikes

March 18, 2024
Managing electrical noise in a compact and lightweight vehicle is a perpetual obstacle

Power modules provide high-efficiency conversion between 400V and 800V systems for electric vehicles

March 18, 2024
Porsche, Hyundai and GMC all are converting 400 – 800V today in very different ways. Learn more about how power modules stack up to these discrete designs.

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!