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™) 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, (kΩ) and 100 kΩ 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 https://www.onsemi.com.
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