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LM2903M
IC COMPARATOR 2 DIFF 8SOIC
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規格
| Part Status | Obsolete |
| Base Product Number | LM2903 |
| Type | Standard (General Purpose) |
| Number of Elements | 2 |
| Output Type | Open-Collector, Rail-to-Rail |
| Voltage - Supply, Single/Dual (±) | 2V ~ 36V, ±1V ~ 18V |
| Voltage - Input Offset (Max) | 7mV @ 5V |
| Current - Input Bias (Max) | 0.25µA @ 5V |
| Current - Output (Typ) | 16mA @ 5V |
| Current - Quiescent (Max) | 2.5mA |
| Operating Temperature | -40°C ~ 105°C |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Supplier Device Package | 8-SOIC |
| Packaging | Tube |
概述
Description
The LM2903M is a dual comparator integrated circuit (IC) designed for various analog signal processing applications. It features two independent, high-gain, voltage comparators capable of operating with a single or dual power supply. The IC is characterized by its low input offset voltage, wide supply voltage range (typically from 2V to 36V), and low power consumption, making it suitable for battery-operated devices.
Key specifications include a common-mode input voltage range that extends below ground, which is advantageous for applications involving negative voltages. The LM2903M can drive TTL-compatible outputs, making it easy to interface with other digital circuits. Its low propagation delay ensures quick response times, suitable for applications like zero-crossing detection, level shifting, and oscillators.
The LM2903M is available in various package types, including surface-mount options, which facilitate integration into modern circuit designs. Overall, this versatile comparator is widely used in automotive, industrial, and consumer electronics for signal conditioning and control tasks.
Key specifications include a common-mode input voltage range that extends below ground, which is advantageous for applications involving negative voltages. The LM2903M can drive TTL-compatible outputs, making it easy to interface with other digital circuits. Its low propagation delay ensures quick response times, suitable for applications like zero-crossing detection, level shifting, and oscillators.
The LM2903M is available in various package types, including surface-mount options, which facilitate integration into modern circuit designs. Overall, this versatile comparator is widely used in automotive, industrial, and consumer electronics for signal conditioning and control tasks.
Features
The LM2903M is a dual voltage comparator designed for various applications, including signal conditioning, level shifting, and voltage level detection. Key features include:
1. Dual Comparator: Contains two independent comparators in a single package.
2. Wide Supply Voltage Range: Operates from 2 to 36 V, accommodating a variety of power supply needs.
3. Low Input Offset Voltage: Typically around 2 mV, ensuring accurate comparisons.
4. High Gain: Offers a voltage gain of 100,000 V/V, enhancing sensitivity.
5. Open-Collector Output: Allows easy interfacing with different voltage levels and provides flexibility in output configurations.
6. Broad Operating Temperature Range: Functions effectively from -40°C to +125°C, suitable for harsh environments.
7. Low Power Consumption: Consumes minimal power, making it ideal for battery-operated devices.
These features make the LM2903M versatile for applications such as analog-to-digital conversion, voltage monitoring, and various control systems.
1. Dual Comparator: Contains two independent comparators in a single package.
2. Wide Supply Voltage Range: Operates from 2 to 36 V, accommodating a variety of power supply needs.
3. Low Input Offset Voltage: Typically around 2 mV, ensuring accurate comparisons.
4. High Gain: Offers a voltage gain of 100,000 V/V, enhancing sensitivity.
5. Open-Collector Output: Allows easy interfacing with different voltage levels and provides flexibility in output configurations.
6. Broad Operating Temperature Range: Functions effectively from -40°C to +125°C, suitable for harsh environments.
7. Low Power Consumption: Consumes minimal power, making it ideal for battery-operated devices.
These features make the LM2903M versatile for applications such as analog-to-digital conversion, voltage monitoring, and various control systems.
Package
The LM2903M is typically packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package. It is a dual comparator designed for low power applications.
Pinout
The LM2903M is a dual comparator integrated circuit with an 8-pin configuration.
Pin Count and Functions:
1. Pin 1 (Non-Inverting Input A): Positive input for the first comparator.
2. Pin 2 (Inverting Input A): Negative input for the first comparator.
3. Pin 3 (Output A): Output for the first comparator.
4. Pin 4 (Ground): Common ground reference.
5. Pin 5 (Non-Inverting Input B): Positive input for the second comparator.
6. Pin 6 (Inverting Input B): Negative input for the second comparator.
7. Pin 7 (Output B): Output for the second comparator.
8. Pin 8 (Supply Voltage): Power supply pin (typically +2V to +36V).
The LM2903M operates as a voltage comparator and is widely used in various applications including signal conditioning, switching, and level detection.
Pin Count and Functions:
1. Pin 1 (Non-Inverting Input A): Positive input for the first comparator.
2. Pin 2 (Inverting Input A): Negative input for the first comparator.
3. Pin 3 (Output A): Output for the first comparator.
4. Pin 4 (Ground): Common ground reference.
5. Pin 5 (Non-Inverting Input B): Positive input for the second comparator.
6. Pin 6 (Inverting Input B): Negative input for the second comparator.
7. Pin 7 (Output B): Output for the second comparator.
8. Pin 8 (Supply Voltage): Power supply pin (typically +2V to +36V).
The LM2903M operates as a voltage comparator and is widely used in various applications including signal conditioning, switching, and level detection.
Manufacturer
The LM2903M is manufactured by Texas Instruments (TI), a prominent American technology company. Established in 1930, Texas Instruments specializes in the design and production of semiconductors and various integrated circuits. The company is well-known for its innovation in analog and embedded processing solutions, serving a wide range of industries, including automotive, industrial, communications, and consumer electronics. TI's LM2903M is a dual comparator integrated circuit, widely used in various electronic applications for signal comparison and processing.
Application
The LM2903M is a dual comparator used in various applications, including voltage level detection, zero-crossing detection, and analog signal processing. It's commonly employed in automotive systems, industrial equipment, and consumer electronics for tasks such as overvoltage protection, signal conditioning, and pulse-width modulation. Additionally, it can be used in comparator-based oscillators and waveform generators. Its low power consumption and wide supply voltage range make it suitable for battery-operated devices as well.
Equivalent
The LM2903M is a dual comparator. Equivalent products include:
1. LM393 - A popular dual comparator.
2. TLV170 - A low-power dual comparator.
3. LMV7219 - A low-voltage dual comparator.
4. LM358 - Although primarily an op-amp, it includes comparator functionality in some configurations.
Always check the specific voltage, current, and performance requirements for your application when selecting an equivalent.
1. LM393 - A popular dual comparator.
2. TLV170 - A low-power dual comparator.
3. LMV7219 - A low-voltage dual comparator.
4. LM358 - Although primarily an op-amp, it includes comparator functionality in some configurations.
Always check the specific voltage, current, and performance requirements for your application when selecting an equivalent.
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