사양
| 속성 | 가치 |
| Package / Case | Tube |
| Part Status | Active |
| Type | Differential |
| Number of Elements | 2 |
| Output Type | CMOS, MOS, Open-Drain, 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) | 20mA |
| Current - Quiescent (Max) | 2.5mA |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Through Hole |
개요
Description
The LM2903P is a dual comparator integrated circuit (IC) designed for general-purpose voltage comparison tasks. It features two independent voltage comparators within a single package, capable of operating from a single or dual power supply. The device is widely used in various applications due to its low power consumption and wide input voltage range.
Key specifications of the LM2903P include low input offset voltage, low input bias current, and a wide common-mode input voltage range that extends to ground. It also offers a low output saturation voltage, making it suitable for driving TTL and CMOS logic levels.
The LM2903P is commonly used in applications like battery management systems, sensor interfaces, zero-crossing detectors, and over-voltage protection circuits, among others. Its versatility and reliability make it a popular choice in both consumer electronics and industrial applications.
Housed in a standard DIP (Dual Inline Package), the LM2903P is easy to integrate into various designs, providing engineers with a simple yet effective solution for voltage comparison needs.
Key specifications of the LM2903P include low input offset voltage, low input bias current, and a wide common-mode input voltage range that extends to ground. It also offers a low output saturation voltage, making it suitable for driving TTL and CMOS logic levels.
The LM2903P is commonly used in applications like battery management systems, sensor interfaces, zero-crossing detectors, and over-voltage protection circuits, among others. Its versatility and reliability make it a popular choice in both consumer electronics and industrial applications.
Housed in a standard DIP (Dual Inline Package), the LM2903P is easy to integrate into various designs, providing engineers with a simple yet effective solution for voltage comparison needs.
Equivalent
The LM2903P is a dual comparator IC. Equivalent products include:
1. LM393 - A widely used dual comparator with similar specifications.
2. LM293 - A ruggedized version with similar functionalities.
3. LM193 - A military-grade version with equivalent functionality.
4. MC3302 - Another dual comparator with similar characteristics.
5. KA2903 - A direct equivalent from another manufacturer.
6. NTE834M - An equivalent dual comparator IC.
These alternatives are generally pin-compatible and have similar electrical characteristics. Always verify datasheets for specific application needs.
1. LM393 - A widely used dual comparator with similar specifications.
2. LM293 - A ruggedized version with similar functionalities.
3. LM193 - A military-grade version with equivalent functionality.
4. MC3302 - Another dual comparator with similar characteristics.
5. KA2903 - A direct equivalent from another manufacturer.
6. NTE834M - An equivalent dual comparator IC.
These alternatives are generally pin-compatible and have similar electrical characteristics. Always verify datasheets for specific application needs.
Features
The LM2903P is a dual comparator IC featuring two independent voltage comparators designed to operate from a single power supply. Key features include:
1. Dual Comparator: Contains two separate comparators in one package, allowing for versatile applications.
2. Wide Supply Voltage Range: Operates from 2 V to 36 V for single supply and ±1 V to ±18 V for dual supply, providing flexibility in design.
3. Low Input Offset Voltage: Typically around 2 mV, which ensures accurate voltage comparison.
4. Low Supply Current: Draws very little power, typically 0.8 mA per comparator, making it suitable for battery-powered devices.
5. Output Compatibility: Open-collector outputs allow for wired AND connections, suitable for interfacing with various logic families.
6. Wide Input Common-Mode Voltage Range: The input can operate 0 V to VCC-1.5 V, which improves versatility in different applications.
7. Temperature Range: Designed to operate over a wide temperature range, typically -40°C to +85°C, ensuring reliability in various environments.
These features make the LM2903P ideal for applications like voltage level detection, signal conditioning, and pulse generation.
1. Dual Comparator: Contains two separate comparators in one package, allowing for versatile applications.
2. Wide Supply Voltage Range: Operates from 2 V to 36 V for single supply and ±1 V to ±18 V for dual supply, providing flexibility in design.
3. Low Input Offset Voltage: Typically around 2 mV, which ensures accurate voltage comparison.
4. Low Supply Current: Draws very little power, typically 0.8 mA per comparator, making it suitable for battery-powered devices.
5. Output Compatibility: Open-collector outputs allow for wired AND connections, suitable for interfacing with various logic families.
6. Wide Input Common-Mode Voltage Range: The input can operate 0 V to VCC-1.5 V, which improves versatility in different applications.
7. Temperature Range: Designed to operate over a wide temperature range, typically -40°C to +85°C, ensuring reliability in various environments.
These features make the LM2903P ideal for applications like voltage level detection, signal conditioning, and pulse generation.
Pinout
The LM2903P is a dual comparator integrated circuit. It consists of two independent voltage comparators designed to operate from a single power supply. The device is housed in an 8-pin PDIP (Plastic Dual Inline Package). Here is the pin count and function for each pin:
1. Pin 1 (Output A): Output of Comparator A.
2. Pin 2 (Input A- or IN- A): Inverting input of Comparator A.
3. Pin 3 (Input A+ or IN+ A): Non-inverting input of Comparator A.
4. Pin 4 (GND or Ground): Ground or negative supply voltage.
5. Pin 5 (Input B+ or IN+ B): Non-inverting input of Comparator B.
6. Pin 6 (Input B- or IN- B): Inverting input of Comparator B.
7. Pin 7 (Output B): Output of Comparator B.
8. Pin 8 (VCC or Positive Supply Voltage): Positive supply voltage.
The LM2903P is commonly used in applications requiring low voltage, low current operation, and where precision and reliability are critical, such as battery-operated devices, loop control systems, and sensor interfacing.
1. Pin 1 (Output A): Output of Comparator A.
2. Pin 2 (Input A- or IN- A): Inverting input of Comparator A.
3. Pin 3 (Input A+ or IN+ A): Non-inverting input of Comparator A.
4. Pin 4 (GND or Ground): Ground or negative supply voltage.
5. Pin 5 (Input B+ or IN+ B): Non-inverting input of Comparator B.
6. Pin 6 (Input B- or IN- B): Inverting input of Comparator B.
7. Pin 7 (Output B): Output of Comparator B.
8. Pin 8 (VCC or Positive Supply Voltage): Positive supply voltage.
The LM2903P is commonly used in applications requiring low voltage, low current operation, and where precision and reliability are critical, such as battery-operated devices, loop control systems, and sensor interfacing.
Manufacturer
The LM2903P is a dual comparator integrated circuit manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company headquartered in Dallas, Texas. It designs, manufactures, tests, and sells analog and embedded processing chips. TI's products are widely used in electronics across various sectors, including industrial, automotive, personal electronics, and communications equipment.
Application
The LM2903P is a dual voltage comparator used in various applications. It is commonly utilized in sensor interfacing, zero-crossing detectors, and level shifters. In automotive systems, it can be used for battery monitoring and overvoltage protection. In industrial settings, it's applied in instrumentation circuits and control systems. Additionally, the LM2903P is used in power management systems, such as DC-DC converters, to ensure efficient operation. Its ability to operate over a wide voltage range makes it suitable for consumer electronics, including audio and communication devices. The LM2903P is valued for its reliability and versatility in both analog and digital circuits.
Package
The LM2903P is typically available in a Dual In-line Package (DIP) with 8 pins. This package type is commonly used for through-hole mounting on circuit boards.
