Circuit Lake

The circuit is a easy design an Oscillator. The main component consists of the VCO (ICL8038), the CMOS-compatible output stage using the MOSFET driver chip ICL7667 and the sine and triangle output stage (LT1210). It is capable of producing sine, triangle and square wave output with a frequency up to several hundred kHz. Wolfgang Wieser, the designer, said that the Oscillator featuring the following attributes:

• 1.1A guaranteed output current for sine and triangle waves with thermal shutdown and protection diodes
• About 50% duty cycle (non-precision and adjustable via a trim pot)
• Variable offset and gain for the sine/triangle output
• Frequency range 0.5Hz to 300 kHz (but signal degenerates when approaching the upper frequency limit)
• Single supply operation, 5V to 15V
• CMOS-compatible complementary square wave outputs capable of driving into 50 Ohm with rise/fall times of 30ns
• at 10V (new in Rev 3).

© Wolfgang Wieser