사양
| 속성 | 가치 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Obsolete |
| Type | General Purpose |
| Number of Elements | 2 |
| Output Type | CMOS, DTL, ECL, MOS, Open-Collector, TTL |
| Voltage - Supply, Single/Dual (±) | 2V ~ 36V, ±1V ~ 18V |
| Voltage - Input Offset (Max) | 7mV @ 30V |
| Current - Input Bias(Max) | 0.25µA @ 5V |
| Current - Output (Typ) | 16mA @ 5V |
| Current - Quiescent (Max) | 2.5mA |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
개요
Description
The LM2903MX is a dual differential comparator IC designed for applications requiring low-power and high-performance solutions. It operates with a wide supply voltage range, typically between 2V and 36V, making it versatile for various circuits. This IC is part of the LM2903 series, which is known for its reliability and efficiency.
The LM2903MX features two independent voltage comparators that draw low supply current, making it ideal for battery-powered applications. The outputs are compatible with TTL, CMOS, and other logic families, providing flexibility in interfacing. It is designed to operate in a wide temperature range, which makes it suitable for use in harsh environments.
The device is commonly used for tasks such as zero-crossing detectors, voltage level detection, and basic operational amplifier applications. Its compact SOIC-8 package allows for easy integration into circuit designs, promoting space efficiency on printed circuit boards. Overall, the LM2903MX is valued for its robustness, versatility, and low power consumption.
The LM2903MX features two independent voltage comparators that draw low supply current, making it ideal for battery-powered applications. The outputs are compatible with TTL, CMOS, and other logic families, providing flexibility in interfacing. It is designed to operate in a wide temperature range, which makes it suitable for use in harsh environments.
The device is commonly used for tasks such as zero-crossing detectors, voltage level detection, and basic operational amplifier applications. Its compact SOIC-8 package allows for easy integration into circuit designs, promoting space efficiency on printed circuit boards. Overall, the LM2903MX is valued for its robustness, versatility, and low power consumption.
Equivalent
The LM2903MX is a dual voltage comparator. Equivalent products include the LM393, LM2903, LM393N and LM2903N. These chips are commonly used in similar applications requiring dual comparators. It's essential to check the datasheets, as there might be variations in specifications like voltage range, package type, and temperature ratings.
Features
The LM2903MX is a dual voltage comparator IC designed for use in various electronic applications. Key features include:
1. Dual Comparator: Contains two independent voltage comparators in a single package.
2. Wide Supply Range: Operates from 2 V to 36 V single supply or ±1 V to ±18 V dual supplies.
3. Low Input Offset Voltage: Typically around 2 mV, ensuring accurate performance.
4. Low Supply Current: Typically around 0.8 mA, making it energy-efficient.
5. Common-Mode Voltage Range: Extends to the negative supply, suitable for ground sensing.
6. Open-Collector Output: Allows for wired-OR configurations and interfacing with different voltage levels.
7. High Output Current: Capable of driving loads up to 16 mA.
8. Temperature Range: Typically operates from -40°C to +85°C, suitable for industrial applications.
9. Package: Available in SOIC-8 package, facilitating compact designs.
These features make the LM2903MX suitable for applications like zero-crossing detectors, voltage level shifters, and various sensor interface circuits.
1. Dual Comparator: Contains two independent voltage comparators in a single package.
2. Wide Supply Range: Operates from 2 V to 36 V single supply or ±1 V to ±18 V dual supplies.
3. Low Input Offset Voltage: Typically around 2 mV, ensuring accurate performance.
4. Low Supply Current: Typically around 0.8 mA, making it energy-efficient.
5. Common-Mode Voltage Range: Extends to the negative supply, suitable for ground sensing.
6. Open-Collector Output: Allows for wired-OR configurations and interfacing with different voltage levels.
7. High Output Current: Capable of driving loads up to 16 mA.
8. Temperature Range: Typically operates from -40°C to +85°C, suitable for industrial applications.
9. Package: Available in SOIC-8 package, facilitating compact designs.
These features make the LM2903MX suitable for applications like zero-crossing detectors, voltage level shifters, and various sensor interface circuits.
Pinout
The LM2903MX is a dual differential comparator integrated circuit. It typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a breakdown of its pin functions:
1. VCC (Pin 8): This is the supply voltage pin where the positive voltage is connected.
2. GND (Pin 4): Ground pin for the circuit.
3. IN+ (Pins 3 and 5): Non-inverting inputs for the two comparators.
4. IN- (Pins 2 and 6): Inverting inputs for the two comparators.
5. OUT (Pins 1 and 7): Output pins for the two comparators.
Each comparator in the LM2903 can compare two voltages and provide a digital output, indicating which input is higher. The outputs are typically open-collector, allowing for wired-OR configurations and compatibility with various logic levels. The device is commonly used in applications such as signal processing, voltage level detection, and other analog comparison functions.
1. VCC (Pin 8): This is the supply voltage pin where the positive voltage is connected.
2. GND (Pin 4): Ground pin for the circuit.
3. IN+ (Pins 3 and 5): Non-inverting inputs for the two comparators.
4. IN- (Pins 2 and 6): Inverting inputs for the two comparators.
5. OUT (Pins 1 and 7): Output pins for the two comparators.
Each comparator in the LM2903 can compare two voltages and provide a digital output, indicating which input is higher. The outputs are typically open-collector, allowing for wired-OR configurations and compatibility with various logic levels. The device is commonly used in applications such as signal processing, voltage level detection, and other analog comparison functions.
Manufacturer
The LM2903MX is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of analog and embedded processing chips. TI's products are used in various applications, including industrial, automotive, personal electronics, communications, and enterprise systems. The company is known for its innovation in analog and digital signal processing, and it operates with a strong focus on research and development to maintain its competitive edge in the semiconductor industry.
Application
The LM2903MX is a dual comparator IC widely used in various applications. Key areas include:
1. Signal Conditioning: Used in zero-crossing detectors and signal level detection.
2. Industrial Control Systems: Employed for monitoring and control tasks.
3. Automotive Systems: Useful in battery management and sensor interfacing.
4. Consumer Electronics: Integral in audio and video equipment for processing signals.
5. Power Management: Part of over-voltage and over-current protection circuits.
6. Medical Devices: Used in diagnostic and monitoring equipment for signal processing.
Its versatility in comparing two voltages and providing digital output makes it essential in both analog and digital systems.
1. Signal Conditioning: Used in zero-crossing detectors and signal level detection.
2. Industrial Control Systems: Employed for monitoring and control tasks.
3. Automotive Systems: Useful in battery management and sensor interfacing.
4. Consumer Electronics: Integral in audio and video equipment for processing signals.
5. Power Management: Part of over-voltage and over-current protection circuits.
6. Medical Devices: Used in diagnostic and monitoring equipment for signal processing.
Its versatility in comparing two voltages and providing digital output makes it essential in both analog and digital systems.
Package
The LM2903MX is a dual comparator integrated circuit typically housed in an SOIC-8 (Small Outline Integrated Circuit) package. This surface-mount package is compact and suitable for applications requiring space-saving designs.
