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Description
Single Comparators
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The parameters and performance indicators of this product are sourced from the internet. In case of discrepancies, please refer to the manufacturer's technical specifications!！
| QUANTITY | UNIT PRICE | PLUS UNIT PRICE | TOTAL PRICE |
|---|---|---|---|
| ≥1: | US $0.77700 | US $0.69930 | US $0.69930 |
| ≥5: | US $0.62160 | US $0.55944 | US $2.79720 |
| ≥10: | US $0.35742 | US $0.32168 | US $3.21680 |
| ≥20: | US $0.31080 | US $0.27972 | US $5.59440 |
| ≥50: | US $0.27972 | US $0.25175 | US $12.58750 |
| ≥100: | US $0.27195 | US $0.24475 | US $24.47500 |
| ≥200: | US $0.26418 | US $0.23776 | US $47.55200 |
| ≥500: | US $0.25641 | US $0.23077 | US $115.38500 |
| ≥1000: | US $0.24864 | US $0.22378 | US $223.78000 |
Substitute (equivalent) Product
| Substitute Product | Description |
|---|---|
| LM319DR2G | Dual Comparator, High Speed Operation, Low Input Bias Current |
| LMV339IDR | Quad, Low Voltage Operational Amplifier, Low Power Consumption |
| LM393DR | Dual Comparator, Low Power, Wide Supply Voltage Range |
| LM2901N | Quad Comparator, Single Supply, Low Offset Voltage |
| LM339N | Quad Comparator, Wide Supply Voltage Range, Low Power Consumption |
Product Usage
The LM311DR2G is a general-purpose voltage comparator integrated circuit (IC) manufactured by ON Semiconductor. It's commonly used in a variety of circuits that require voltage comparison. Here are some common applications and circuits where the LM311DR2G might be used:
Zero-Crossing Detectors: This circuit detects when an AC signal crosses zero volts, useful in generating timing signals for phase-locked loops or in motor control applications.
Threshold Detectors: Used to trigger an action when an input signal exceeds or falls below a certain voltage threshold. This is useful in alarm systems and battery chargers.
Oscillators: Comparators can be used to generate square waves from a sinusoidal input or other types of oscillating signals.
Pulse Width Modulation (PWM) Controllers: The LM311DR2G can compare an input voltage with a reference to control the width of pulses, useful in motor speed controllers and power supplies.
Analog-to-Digital Conversion (ADC): In some applications, comparators are used in sigma-delta converters and successive approximation ADC architectures.
Window Comparators: These circuits output a signal only when an input voltage is within a specified range, useful in monitoring and control applications.
Schmitt Triggers: Provides hysteresis, allowing for noise-free switching of digital signals in a noisy environment.
Relaxation Oscillator: This application uses a comparator in combination with a capacitor and resistor to generate a stable square wave and is used in timing applications.
Level Shifters: Shifting of signal levels for interfacing between different logic levels, for example, TTL to CMOS logic levels.
Overvoltage/Undervoltage Protection: Used to protect sensitive electronics by comparing the input voltage to predefined limits and triggering protection mechanisms.
Example Basic Comparator Circuit:
Required + Vcc
|
|
[R1]
|
|
Input (+)---------|--- \
| ( >--- Output
----/
|
|----GND
In this circuit:
Vcc is the supply voltage.R1 is a pull-up resistor.Input (+) is the positive input of the comparator.These are just a few examples of the myriad applications that can benefit from using the LM311DR2G comparator. Please refer to the specific datasheet and application notes for detailed information and recommended circuit designs.
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LM311DR2G
LM311DR2G has several brands around the world that may have alternate names for LM311DR2G due to regional differences or acquisition. LM311DR2G may also be known as the following names:
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