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GENERAL DESCRIPTION

The AD5110/AD5112/AD5114 provide a nonvolatile solution for 128-/64-/32-position adjustment applications, offering guaranteed low resistor tolerance errors of ±8 and up to ±6 mA current density in the A, B, and W pins. The low resistor tolerance, low nominal temperature coefficient and high bandwidth simplify open-loop applications, as well as tolerance matching applications.

FEATURES

Single-channel, 128-/64-/32-position resolution

5 kΩ, 10 kΩ, 80 kΩ nominal resistance

Maximum ±8 nominal resistor tolerance error

Low wiper resistance

±6 mA maximum wiper current density

Resistor tolerance stored in EEPROM (0.1 accuracy)

Rheostat mode temperature coefficient: 35 ppm/°C

Potentiometer mode temperature coefficient: 5 ppm/°C

2.3 V to 5.5 V single-supply operation

1.8 V to 5.5 V logic supply operation

Power-on EEPROM refresh time < 50 μs

I2C-compatible interface

Wiper setting and EEPROM readback

50-year typical data retention at 125°C

1 million write cycles

Wide operating temperature: ?40°C to +125°C

Thin, 2 mm × 2 mm × 0.55 mm 8-lead LFCSP package

APPLICATIONS

Mechanical potentiometer replacement

Portable electronics level adjustment

Audio volume control

Low resolution DAC

LCD panel brightness and contrast control

Programmable voltage to current conversion

Programmable filters, delays, time constants

Feedback resistor programmable power supply

Sensor calibration