Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR) |
| ProductStatus | Obsolete |
| Type | General Purpose |
| NumberofElements | 4 |
| OutputType | CMOS, MOS, Open-Collector, TTL |
| Voltage-SupplySingle/Dual(±) | 2V ~ 36V, ±1V ~ 18V |
| Voltage-InputOffset(Max) | 7mV @ 5V |
| Current-InputBias(Max) | 0.25µA @ 5V |
| Current-Output(Typ) | 16nA @ 5V |
| Current-Quiescent(Max) | 2mA |
| OperatingTemperature | -40°C ~ 125°C |
| Package/Case | 14-SOIC (0.154, 3.90mm Width) |
| MountingType | Surface Mount |
Tổng quan
Description
The LM2901DT is a quad voltage comparator integrated circuit manufactured by STMicroelectronics. It contains four independent voltage comparators, which are designed to operate from a single power supply over a wide range of voltages. The device can also handle split power supplies, making it versatile for various applications.
Each comparator in the LM2901DT compares two voltages and provides a digital output indicating which input is higher. The outputs are open-collector, allowing them to be wired together in a wired-OR configuration. This feature is particularly useful in applications that require multiple signal combinations.
The LM2901DT is known for its low power consumption, wide power supply range (typically 2V to 36V), and ability to handle large input voltage differences. It is commonly used in applications such as signal conditioning, sensor interfacing, and level shifting. Additionally, it is suitable for automotive, industrial, and consumer electronics due to its robustness and reliable performance across different environmental conditions.
Each comparator in the LM2901DT compares two voltages and provides a digital output indicating which input is higher. The outputs are open-collector, allowing them to be wired together in a wired-OR configuration. This feature is particularly useful in applications that require multiple signal combinations.
The LM2901DT is known for its low power consumption, wide power supply range (typically 2V to 36V), and ability to handle large input voltage differences. It is commonly used in applications such as signal conditioning, sensor interfacing, and level shifting. Additionally, it is suitable for automotive, industrial, and consumer electronics due to its robustness and reliable performance across different environmental conditions.
Equivalent
The LM2901DT is a quad comparator IC. Equivalent products include the LM339 LM2901, and LM393series from various manufacturers like Texas Instruments, STMicroelectronics, and On Semiconductor. These ICs are often interchangeable with the LM2901DT for most applications, though variations in specifications like supply voltage range and temperature ratings should be verified for compatibility with your specific requirements.
Features
The LM2901DT is a quad voltage comparator integrated circuit. Key features include:
1. Quad Comparator: Contains four independent voltage comparators in a single package.
2. Wide Supply Voltage Range: Operates with a supply voltage ranging from 2V to 36V for a single supply and ±1V to ±18V for dual supplies.
3. Low Input Offset Voltage: Ensures precise voltage comparison with a low offset voltage typically around 2mV.
4. Low Power Consumption: Designed for low power applications, with a typical current consumption of 0.8 mA per comparator.
5. Open Collector Output: Features an open collector output for easy interfacing with other digital logic circuits and allows for wired-OR connections.
6. Wide Input Common-Mode Voltage Range: The input voltage range includes ground, making it suitable for single-supply operations.
7. Temperature Range: Operates over a wide temperature range, typically from -40°C to +125°C, making it suitable for automotive and industrial applications.
8. Package Options: Available in various package options like SO-14 for surface mounting.
These features make the LM2901DT suitable for applications requiring stable and reliable voltage comparison.
1. Quad Comparator: Contains four independent voltage comparators in a single package.
2. Wide Supply Voltage Range: Operates with a supply voltage ranging from 2V to 36V for a single supply and ±1V to ±18V for dual supplies.
3. Low Input Offset Voltage: Ensures precise voltage comparison with a low offset voltage typically around 2mV.
4. Low Power Consumption: Designed for low power applications, with a typical current consumption of 0.8 mA per comparator.
5. Open Collector Output: Features an open collector output for easy interfacing with other digital logic circuits and allows for wired-OR connections.
6. Wide Input Common-Mode Voltage Range: The input voltage range includes ground, making it suitable for single-supply operations.
7. Temperature Range: Operates over a wide temperature range, typically from -40°C to +125°C, making it suitable for automotive and industrial applications.
8. Package Options: Available in various package options like SO-14 for surface mounting.
These features make the LM2901DT suitable for applications requiring stable and reliable voltage comparison.
Pinout
The LM2901DT is a quad voltage comparator integrated circuit. It features 14 pins, each serving specific functions. Here's the pin configuration:
1. Pin 1 - Output 1
2. Pin 2 - Inverting Input 1
3. Pin 3 - Non-Inverting Input 1
4. Pin 4 - VCC (Positive Supply Voltage)
5. Pin 5 - Non-Inverting Input 2
6. Pin 6 - Inverting Input 2
7. Pin 7 - Output 2
8. Pin 8 - Output 3
9. Pin 9 - Inverting Input 3
10. Pin 10 - Non-Inverting Input 3
11. Pin 11 - GND (Ground or Negative Supply Voltage)
12. Pin 12 - Non-Inverting Input 4
13. Pin 13 - Inverting Input 4
14. Pin 14 - Output 4
Each comparator within the chip has its own pair of inverting and non-inverting inputs, and a single output pin, allowing it to compare two voltage levels and output a digital signal based on which input is higher.
1. Pin 1 - Output 1
2. Pin 2 - Inverting Input 1
3. Pin 3 - Non-Inverting Input 1
4. Pin 4 - VCC (Positive Supply Voltage)
5. Pin 5 - Non-Inverting Input 2
6. Pin 6 - Inverting Input 2
7. Pin 7 - Output 2
8. Pin 8 - Output 3
9. Pin 9 - Inverting Input 3
10. Pin 10 - Non-Inverting Input 3
11. Pin 11 - GND (Ground or Negative Supply Voltage)
12. Pin 12 - Non-Inverting Input 4
13. Pin 13 - Inverting Input 4
14. Pin 14 - Output 4
Each comparator within the chip has its own pair of inverting and non-inverting inputs, and a single output pin, allowing it to compare two voltage levels and output a digital signal based on which input is higher.
Manufacturer
The LM2901DT is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of electronic components and solutions. The company is known for its innovation and expertise in semiconductor technology, offering products for various applications, including automotive, industrial, personal electronics, communications, and computer peripherals. STMicroelectronics is headquartered in Geneva, Switzerland, and operates globally, serving customers in numerous industries with a focus on developing sustainable and energy-efficient technologies.
Application
The LM2901DT is a quad comparator integrated circuit used in various applications due to its ability to operate with a wide range of voltages. Key application areas include:
1. Voltage Level Detection: Used in systems to detect over-voltage, under-voltage, and zero-crossing.
2. Signal Conditioning: Ideal for converting analog signals into digital outputs for microcontrollers.
3. Oscillator Circuits: Employed in generating clock pulses or waveform shaping.
4. Battery Management Systems: Used for monitoring and protection of battery cells.
5. Industrial Controls: Suitable for automation systems requiring precise signal comparison.
6. Consumer Electronics: Applied in devices requiring reliable signal processing.
These applications leverage the LM2901DT's low power consumption and high input impedance.
1. Voltage Level Detection: Used in systems to detect over-voltage, under-voltage, and zero-crossing.
2. Signal Conditioning: Ideal for converting analog signals into digital outputs for microcontrollers.
3. Oscillator Circuits: Employed in generating clock pulses or waveform shaping.
4. Battery Management Systems: Used for monitoring and protection of battery cells.
5. Industrial Controls: Suitable for automation systems requiring precise signal comparison.
6. Consumer Electronics: Applied in devices requiring reliable signal processing.
These applications leverage the LM2901DT's low power consumption and high input impedance.
Package
The LM2901DT is a quad voltage comparator IC and is typically available in the SOIC-14 (Small Outline Integrated Circuit) package type, which has 14 pins.
