QT301

The QT301 charge-transfer (QT) ICs is a self-contained capacitance-to-analog-converter capable of detecting femotofaraed level changes in capacitance.The QT301  is designed primarily for stand-alone instrumentation applications.Primary applications include fluid level sensors,distance sensors,material datactors,transducer amplifiers for pressure and humidity sensing functions,and other uses requiring quantified capacitance data.

Applications of the QT301 are:(1)fluid level sensors;(2)moisture detection;(3)transducer driver;(4)procimity sensor;(5)position sensing;(6)material sensors.

The absolute maximum ratings of the QT301 can be summarized as:(1):the parameter is operating temperature,the rating is as designated by suffix;(2):the parameter is storage temperature,the rating is -65 to +125,the unit is ;(3):the parameter is VDD,the rating is -0.5 to +6,the unit is V;(4):the parameter is max continuous pin current, any control or drive pin,the rating is ±40,the unit is mA;(5):the parameter is short circuit duration to ground,any pin,the rating is infinite;(6):the parameter is short circuit duration to VDD,any pin,the rating is infinite;(7):the parameter isvoltage forced onto any pin,the rating is -1 to Vdd+0.5,the unit is Volts.