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Description
Schmitt trigger is a comparator circuit which uses positive feedback to implement hysteresis. It is an active circuit which converts the analog input signal to the digital output (1,0) signal provided that the input signal is above a predefined threshold.
HCF40106 BE is a monolithic integrated circuit. Each IC consists of six Schmitt triggers circuits, with each circuit functions as an inverter with Schmitt trigger action on the input. The trigger switches at different times for positive and negative going signals. The difference between positive and negative going signals is called hysteresis voltage. This IC can operate at medium temperature range.
Pin description
IC Electrical Characteristics/ Specifications
Some Electrical characteristic of the device are given below
Working Principle
Schmitt trigger utilizes the hysteresis, which is based on positive feedback. Any active circuit can be made to act as Schmitt trigger by applying positive feedback so that the gain of the circuit is greater than one. It is called trigger because the output of the circuit triggers after the input has significantly changed it value. When the input is above a threshold value the trigger will change its value to HIGH, if the input to the trigger is below a certain threshold output will go LOW. During the interval when the input is between HIGH and LOW thresholds, the trigger will be no change on the output.
Applications
Schmitt trigger are used in following applications
● Analog to Digital conversion
● Level detection circuits
● Line reception circuits
● Noise immunity booster
Astable Multivibrator
Astable multivibrator is also called free running multivibrator is the one which has no stable state. Output keep bouncing between a high and low state. Time period of each state is determined by the RC network.
Monostabel Multivibrator
Monostabel multivibrator using HCF04106BE is shown below, monostabel multivibrator is also called One Shot, it produces an output pulse when triggered. Duration of this pulse depends upon the RC network attached to the IC.
| QUANTITY | UNIT PRICE | PLUS UNIT PRICE | TOTAL PRICE |
|---|---|---|---|
| ≥1: | US $1.33200 | US $1.19880 | US $1.19880 |
| ≥5: | US $1.19880 | US $1.07892 | US $5.39460 |
| ≥10: | US $0.79920 | US $0.71928 | US $7.19280 |
| ≥20: | US $0.66600 | US $0.59940 | US $11.98800 |
| ≥50: | US $0.61272 | US $0.55145 | US $27.57250 |
| ≥100: | US $0.53280 | US $0.47952 | US $47.95200 |
| ≥200: | US $0.47952 | US $0.43157 | US $86.31400 |
| ≥500: | US $0.45288 | US $0.40759 | US $203.79500 |
| ≥1000: | US $0.42624 | US $0.38362 | US $383.62000 |
Substitute (equivalent) Product
| Substitute Product | Description |
|---|---|
| CD40106BE | Hex Schmitt Trigger Inverter, similar functionalities, and operating conditions as HCF40106BE |
| MC14584BCP | Hex Schmitt Trigger with similar voltage range and input hysteresis, suitable replacement for HCF40106BE |
| SN74LS14N | Hex Schmitt Trigger Inverter with faster switching speeds, generally interchangeable with HCF40106BE |
| HEF40106BP | Similar Hex Schmitt Trigger Inverter with compatible voltage and logic levels, a direct substitute |
| MM74HC14N | High-speed CMOS Hex Schmitt Trigger Inverter, an alternative part with faster response times |
Product Usage
The HCF40106BE is a hex Schmitt trigger inverter IC, which is a versatile component used in a variety of electronic circuits. Here are some types of circuits where the HCF40106BE can be utilized:
Oscillators: Schmitt trigger inverters like the HCF40106BE are commonly used to create stable oscillators due to their hysteresis properties. These oscillators can generate square wave signals for use in timing applications, clock generation, and waveform generation.
Debouncing Circuits: Mechanical switches and pushbuttons often produce noisy signals when toggled. A Schmitt trigger can clean up these signals by providing a sharply defined transition between high and low states, thus debouncing the mechanical noise.
Signal Conditioning: The Schmitt trigger can be used to condition noisy input signals, ensuring that only clean transitions are processed by the subsequent stages of a circuit.
Waveform Generators: Schmitt triggers can be used to construct various types of waveform generators, including square, triangle, and sawtooth wave generators, often with the help of additional components like resistors and capacitors.
Pulse Width Modulation (PWM): Schmitt trigger inverters can be used in PWM circuits to generate signals with varying duty cycles, which are useful in controlling the speed of motors or the brightness of LEDs.
Analog-to-Digital Converters (ADC) Introduction Stages: In some simple ADC circuits, a Schmitt trigger can be used as the initial stage to convert analog signals into a digital pulse train.
Frequency Multipliers and Dividers: By using feedback and additional gating circuits, Schmitt triggers can be used in frequency multiplier and divider circuits.
Digital Filters: Schmitt triggers can be part of digital noise filter circuits that remove high-frequency noise from a signal while passing the primary frequency of interest.
Ramp Generators: Combined with capacitors and resistors, a Schmitt trigger can be used to generate ramp signals, which are useful in various timing applications.
Logic Level Shifters: The Schmitt trigger's sharp threshold characteristics make it useful in shifting logic levels from one voltage domain to another, ensuring reliable logic transitions.
These applications make the HCF40106BE a highly versatile component in the design of both analog and digital electronic circuits.
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HCF40106BE
HCF40106BE has several brands around the world that may have alternate names for HCF40106BE due to regional differences or acquisition. HCF40106BE may also be known as the following names:
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