ON Semiconductor, a supplier of silicon products, has expanded its family of Digitally Programmable Potentiometer (DPP) ICs with new devices, incorporating I2C and Serial Peripheral Interface (SPI) Bus connectivity.
According to ON Semiconductor, the new devices CAT5171 and CAT5172 are single-channel, digitally programmable linear taper potentiometers featuring 256-position resolution. Digital control of wiper settings is made via I2C and SPI interfaces and both devices are available with resistance options of 50 kiloohms (kO) and 100 kO.
The company said that the products are insensitive to mechanical vibrations, shock, oxidation and dust and dirt and has low temperature coefficient of 100 part per million per degrees Celsius (ppm/ºC). They operate between temperatures of -40 ºC to 85 ºC.
The company claims that the new products offer a space-saving alternative to mechanical potentiometers.
The new DPPs are suitable for volume control, lighting control, LCD screen adjustment and other circuitry requiring electronic control of key parameters.
The CAT5171 and CAT5172 DPPs are supplied in lead (Pb) free, RoHS-compliant 8-lead SOT-23 packages measuring just 2.9 mm x 3.0 mm, said ON Semiconductor.
Pricing is fixed at $0.60 per unit in 10,000 unit quantities.
