仕様
| 属性 | 値 |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| Type | General Purpose |
| NumberofElements | 2 |
| OutputType | CMOS, DTL, ECL, MOS, Open-Collector, TTL |
| Voltage-SupplySingle/Dual(±) | 2V ~ 36V, ±1V ~ 18V |
| Voltage-InputOffset(Max) | 7mV @ 30V |
| Current-InputBias(Max) | 0.25µA @ 5V |
| Current-Output(Typ) | 16mA @ 5V |
| Current-Quiescent(Max) | 2.5mA |
| OperatingTemperature | -40°C ~ 125°C |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
| MountingType | Surface Mount |
概要
Description
The LM2903VDR2G is a dual differential comparator integrated circuit from ON Semiconductor. It is designed to operate over a wide temperature range and provides high precision in comparing two input voltages. The device is part of the LM2903 series, known for its low power consumption and reliable performance in various applications such as automotive, industrial, and consumer electronics.
Key features of the LM2903VDR2G include a wide supply voltage range (typically 2V to 36V), low input offset voltage, and low input bias current. The open-collector output allows for wired-OR configurations, enabling multiple outputs to be connected for logic-level interfacing and level shifting. Additionally, the device is characterized for operation over the automotive temperature range, making it suitable for harsh environments.
The comparator is housed in a small, space-efficient SOIC-8 package, which is ideal for applications with limited space. Its combination of performance, versatility, and cost-effectiveness makes the LM2903VDR2G a popular choice for designers requiring reliable and precise voltage comparison.
Key features of the LM2903VDR2G include a wide supply voltage range (typically 2V to 36V), low input offset voltage, and low input bias current. The open-collector output allows for wired-OR configurations, enabling multiple outputs to be connected for logic-level interfacing and level shifting. Additionally, the device is characterized for operation over the automotive temperature range, making it suitable for harsh environments.
The comparator is housed in a small, space-efficient SOIC-8 package, which is ideal for applications with limited space. Its combination of performance, versatility, and cost-effectiveness makes the LM2903VDR2G a popular choice for designers requiring reliable and precise voltage comparison.
Equivalent
The LM2903VDR2G is a dual comparator chip. Equivalent products include:
1. LM393 series (e.g., LM393 LM393N)
2. TI's TLV1702
3. ON Semiconductor's MC33072
4. Microchip's MCP6542
These alternatives can vary in terms of specifications like voltage range and response time, so it's important to compare specific parameters to ensure compatibility with your application.
1. LM393 series (e.g., LM393 LM393N)
2. TI's TLV1702
3. ON Semiconductor's MC33072
4. Microchip's MCP6542
These alternatives can vary in terms of specifications like voltage range and response time, so it's important to compare specific parameters to ensure compatibility with your application.
Features
The LM2903VDR2G is a dual comparator integrated circuit. Key features include:
1. Dual Comparators: Contains two independent voltage comparators in a single package, suitable for dual supply applications.
2. Wide Voltage Range: Operates over a wide voltage range from 2V to 36V, making it versatile for various applications.
3. Low Supply Current: Consumes minimal power with low supply current, enhancing efficiency.
4. Open Collector Output: Provides open-collector output for easy interfacing with other digital and analog components.
5. Low Input Offset Voltage: Features a low input offset voltage, improving precision and accuracy.
6. Temperature Range: Operates reliably across a wide temperature range, typically from -40°C to 125°C.
7. High Gain: Exhibits high voltage gain, essential for applications requiring amplification.
8. Small Package: Available in a small, space-efficient package, suitable for compact circuit designs.
These features make the LM2903VDR2G ideal for applications such as voltage level detection, threshold detection, and zero-crossing detectors in various electronic systems.
1. Dual Comparators: Contains two independent voltage comparators in a single package, suitable for dual supply applications.
2. Wide Voltage Range: Operates over a wide voltage range from 2V to 36V, making it versatile for various applications.
3. Low Supply Current: Consumes minimal power with low supply current, enhancing efficiency.
4. Open Collector Output: Provides open-collector output for easy interfacing with other digital and analog components.
5. Low Input Offset Voltage: Features a low input offset voltage, improving precision and accuracy.
6. Temperature Range: Operates reliably across a wide temperature range, typically from -40°C to 125°C.
7. High Gain: Exhibits high voltage gain, essential for applications requiring amplification.
8. Small Package: Available in a small, space-efficient package, suitable for compact circuit designs.
These features make the LM2903VDR2G ideal for applications such as voltage level detection, threshold detection, and zero-crossing detectors in various electronic systems.
Pinout
The LM2903VDR2G is a dual differential comparator. It typically comes in an 8-pin package. Here is a concise overview of its pin count and functions:
1. Pin 1 (OUTPUT A): Output of comparator A
2. Pin 2 (INPUT A- or INVERTING INPUT A): Inverting input for comparator A
3. Pin 3 (INPUT A+ or NON-INVERTING INPUT A): Non-inverting input for comparator A
4. Pin 4 (GND or Ground): Ground or negative supply voltage
5. Pin 5 (INPUT B+ or NON-INVERTING INPUT B): Non-inverting input for comparator B
6. Pin 6 (INPUT B- or INVERTING INPUT B): Inverting input for comparator B
7. Pin 7 (OUTPUT B): Output of comparator B
8. Pin 8 (VCC or Positive Supply Voltage): Positive supply voltage
The LM2903VDR2G is used to compare two voltages and outputs a signal indicating which voltage is higher, making it suitable for applications like voltage sensing and level detection.
1. Pin 1 (OUTPUT A): Output of comparator A
2. Pin 2 (INPUT A- or INVERTING INPUT A): Inverting input for comparator A
3. Pin 3 (INPUT A+ or NON-INVERTING INPUT A): Non-inverting input for comparator A
4. Pin 4 (GND or Ground): Ground or negative supply voltage
5. Pin 5 (INPUT B+ or NON-INVERTING INPUT B): Non-inverting input for comparator B
6. Pin 6 (INPUT B- or INVERTING INPUT B): Inverting input for comparator B
7. Pin 7 (OUTPUT B): Output of comparator B
8. Pin 8 (VCC or Positive Supply Voltage): Positive supply voltage
The LM2903VDR2G is used to compare two voltages and outputs a signal indicating which voltage is higher, making it suitable for applications like voltage sensing and level detection.
Manufacturer
The LM2903VDR2G is manufactured by ON Semiconductor, which is now known as onsemi. onsemi is a semiconductor manufacturing company that provides a wide range of energy-efficient solutions for various industries, including automotive, industrial, cloud power, and the Internet of Things (IoT). The company focuses on developing technologies that help reduce global energy use and protect the environment. They offer a variety of products, such as power management solutions, sensors, custom devices, and advanced packaging solutions. onsemi is known for its innovative approach to addressing energy challenges and its commitment to sustainability and efficiency.
Application
The LM2903VDR2G is a dual voltage comparator integrated circuit commonly used in various applications. Key application areas include:
1. Sensor Signal Conditioning: Used in interfacing and processing signals from sensors.
2. Zero-Crossing Detectors: For detecting the crossing point of AC signals.
3. Voltage Level Shifting: Converting between different voltage levels.
4. Oscillators: Used in the creation of waveform generators.
5. Overvoltage and Undervoltage Protection: Monitoring and protection circuits.
6. Switching Power Supplies: As part of feedback and control loops.
7. Analog-to-Digital Converters (ADC): As a comparator in ADC circuits.
Its ability to operate in a wide voltage range and its low power consumption make it versatile in both automotive and industrial applications.
1. Sensor Signal Conditioning: Used in interfacing and processing signals from sensors.
2. Zero-Crossing Detectors: For detecting the crossing point of AC signals.
3. Voltage Level Shifting: Converting between different voltage levels.
4. Oscillators: Used in the creation of waveform generators.
5. Overvoltage and Undervoltage Protection: Monitoring and protection circuits.
6. Switching Power Supplies: As part of feedback and control loops.
7. Analog-to-Digital Converters (ADC): As a comparator in ADC circuits.
Its ability to operate in a wide voltage range and its low power consumption make it versatile in both automotive and industrial applications.
Package
The LM2903VDR2G is typically available in a Dual In-line Package (DIP) or a Small Outline Integrated Circuit (SOIC) package type. These packages are designed for easy mounting on printed circuit boards and are commonly used for general-purpose comparator applications.
