CD40106 Hex Inverter Schmitt Trigger

The CD40106 is a hex inverter with Schmitt trigger inputs, part of the 40xx series CMOS logic family. Each of the six independent inverters incorporates a Schmitt trigger circuit that converts slowly changing or noisy input signals into clean, sharp-edged output transitions. The hysteresis characteristic provides increased noise immunity and ensures reliable switching even with slowly rising or falling waveforms.

This device is particularly useful for waveform shaping, pulse conditioning, and eliminating signal bounce from mechanical switches. The hysteresis threshold levels are determined by the supply voltage, with typical hysteresis of approximately 2V at 10V V_DD. Standard CMOS features include wide operating voltage range, low power consumption, and high input impedance. Common applications include oscillator circuits, signal conditioning, and interface between analog sensors and digital logic.

Features:

1. Six inverting Schmitt triggers
2. Hysteresis for noise immunity and slow signals
3. Clean output transitions from noisy inputs
4. Wide operating voltage: 3V to 15V DC
5. Standard 14-pin DIP package
6. Low power consumption: 10µA at 5V
7. High noise immunity: 1V typical hysteresis at 5V
8. Ideal for oscillator and waveform shaping circuits