Analogue, Mixed Signal, LSI


Digital potentiometers

20 July 2011 Analogue, Mixed Signal, LSI

Maxim has introduced the MAX5391, MAX5392 and MAX5393 range of low-voltage digital potentiometers.

The dual, 256-tap, volatile digital potentiometers operate from a single 1,7 V to 5,5 V power supply, which makes them ideal for replacing mechanical potentiometers and DACs in power-sensitive applications. With features such as a small package size, low operating voltage and low supply current, they are well positioned to serve the portable consumer and industrial battery backup markets. Suitable applications include LCD calibration, volume control, system circuit calibration and trim, amplifier offset, and gain and bias control.

The MAX5391–MAX5393 include two digital potentiometers in a voltage-divider configuration. They have a low 5 ppm/°C ratiometric temperature coefficient and come in three different end-to-end resistance values of 10 kΩ, 50 kΩ and 100 kΩ. SPI-compatible and I²C digital control interfaces are available.

For more information contact Michelle Parreira, CST Electronics, +27 (0)11 608 0070, [email protected], www.cstelectronics.co.za



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