This traditional crystal oscillator configuration can use any CMOS gate configured as an inverter. R1 has values from 1 to 5 M ohm and R values around 10 k.
The figure shows the basic circuit of a temperature sensor with the AD592 thermometric IC. This...
Two operational amplifiers like the 741 or equivalent are used in this voltage-controlled...
This circuit can be used to recognize a tone by its frequency. When this tone is present in a...