touch-sensitive 16 channel multiplexer

touch-sensitiv 16 channel multiplexer CMOS multiplexer/demultip e Analogue signals with a voltage of anything between 0 V and 12 V can be applied to each of these In this particular instance the voltages inputs. from multi-turn potentiometers are derived P1 . .. P16. The output signal from IC2 is available Amongst the "gadgets" which seem to be most ts, enthusiasfrom popular with amateur electronicstand out ,there is one class which appears t s rest: touch-sensitive controls. These can be found amongst the most simple basic equipment up to the most complex piece of apparatus. Nothing seems to R13 = 100 k R14 = 120 k be beyond the realms of touch-sensitive control. ticularapplication is for controlling the ap an FM receiver and is ac- P16 = 100 k lin multi-turn p reset potentiometers This par voltage of 16 analogue channels tuning P1 . . Capacitors: C1 ... C4 =10 p C5 = 56 n C6 . • . C22 = 100 n Semiconductors: D1 ... D4 = LED T1 ... T4 = TUN IC1 = 4044 IC2 = 4067 IC3 = 3140 comp...