The DS3503U+ is a non-volatile I2C stepper potentiometer in 10 pin μSOP package. It features two synchronized stepping digital potentiometers, one 7-bit potentiometer with RW as its output and another potentiometer with Y as its output. Both potentiometers reference the RH and RL terminals which can be stepped up and down by configuring the control registers. Programming is accomplished by an I2C compatible interface that can operate at speeds of up to 400KHz.
Supply voltage range is 2.7V to 3.6V
Operating temperature range from -40°C to 100°C
Single linear taper potentiometer
128 wiper tap points
Programmable logic lets WR step up and down with timing controlled by SYNC input
Second potentiometer output pin (Y) centred at position 40h
End to end resistance is 5Kohm at ±20% tolerance
Ratiometric resistance temperature coefficient is ±4ppm/°C