Digital Potentiometers offer volatile wiper register.

Press Release Summary:




Featuring 256 resistor taps and I2C interface, dual-channel Models CAT5270 and CAT5271 are suited for variable resistance adjustment applications. DPP(TM) ICs offer volatile wiper register for applications using MCU with on-chip memory for wiper recall, or for systems that do not require memory. Available with end-to-end resistance options of 50 and 100 kW, CAT5270 allows microprocessor control of up to 16 devices from single bus, while CAT5271 offers single, fixed address.



Original Press Release:



ON Semiconductor Introduces New 256-Tap Digital Potentiometers for Control of Up to 16 Devices on One Bus



New devices offer volatile wiper register for applications using MCU with on-chip memory for wiper recall, or systems not requiring memory

PHOENIX, Ariz. - Oct. 13, 2009 - ON Semiconductor (Nasdaq: ONNN) a leading global supplier of high performance, energy efficient silicon solutions, today announced the availability of two new Digitally Programmable Potentiometer (DPP(TM)) ICs suitable for high accuracy and stability for variable resistance adjustment applications in a wide range of industrial and consumer products. The CAT5270 and CAT5271 are dual-channel digital potentiometers with 256 resistor taps for fine resolution adjustment and an I2C-compatible interface for maximum interoperability. The new ON Semiconductor DPPs feature a volatile wiper register making them ideal for applications using a microcontroller (MCU) with on-chip memory for wiper recall, or for systems that do not require memory. They also provide a low-noise, reliable and space-saving alternative to mechanical potentiometers with the added benefit of immunity to dust / dirt contamination and vibration.

The CAT5270 allows microprocessor control of up to 16 devices from a single bus, while the CAT5271 offers a single, fixed address. Both devices are available with end-to-end resistance options of 50 kilohms, (kW) and 100 kW; and can be used as a potentiometer or as a 2-terminal, variable rheostat. The volatile wiper register for both devices is set to mid-scale on power-up.

The CAT5270 and CAT5271 are insensitive to mechanical vibrations, shock, oxidation, dust, dirt and other contamination and are a fraction of the size of mechanical potentiometers. They have a low temperature coefficient of 100 parts per million per degrees Celsius (ppm/ºC) making them much more stable and reliable than mechanical potentiometers across a wide variety of environmental conditions.

Packaging and Pricing

The CAT5270 and CAT5271 digitally programmable potentiometers are supplied in 14-lead TSSOP and 10-lead MSOP packages, respectively. Pricing for quantities of 10,000 are $0.81 USD per unit for the CAT5270 and $0.90 USD per unit for the CAT5271.

About ON Semiconductor

With its global logistics network and broad product portfolio, ON Semiconductor (Nasdaq: ONNN) is a preferred supplier of high performance, energy efficient, silicon solutions that enable designers to quickly and cost-effectively improve system efficiency for electronics in the computing, communications, consumer, automotive, industrial, medical and military/aerospace markets. The company's portfolio includes power management, signal, logic, discrete and custom devices. The company operates a network of manufacturing facilities, sales offices, and design centers in key markets throughout North America, Europe, and the Asia Pacific regions. For more information, visit www.onsemi.com.

ON Semiconductor and the ON Semiconductor logo are registered trademarks of Semiconductor Components Industries, LLC. All other brand and product names appearing in this document are registered trademarks or trademarks of their respective holders. Although the company references its Web site in this news release, such information on the Web site is not to be incorporated herein.

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