GENERAL DESCRIPTION The AD5247 provides a compact, 2 mm × 2.1 mm, packaged solution for 128-position adjustment applications. This device performs the same electronic adjustment function as a mechanical potentiometer or a variable resistor. Available in four different end-to-end resistance values (5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ), these low temperature coefficient devices are ideal for high accuracy and stability variable resistance adjustments. FEATURES 128 positions End-to-end resistance: 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ Ultracompact, SC70-6 (2 mm × 2.1 mm) package I2C-compatible interface Full read/write of wiper register Power-on preset to midscale Single-supply 2.7 V to 5.5 V Rheostat mode temperature coefficient: 45 ppm/°C Low power, IDD = 0.9 µA at 3.3 V typical Wide operating temperature range: −40°C to +125°C APPLICATIONS Mechanical potentiometer replacement in new designs Transducer adjustment of pressure, temperature, position, chemical, and optical sensors RF amplifier-biasing LCD brightness and contrast adjustment Automotive electronics adjustment Gain control and offset adjustment
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