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LM2903BIDDFR
+NomenclatureDUAL INDUSTRIAL GRADE STANDARD C
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FabricantTexas Instruments
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Pièce fabricant #LM2903BIDDFR
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Fiche technique LM2903BIDDFR DataSheet
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Package SOT23-8
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En stock6344
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Spécifications
| Attribut | Valeur |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | General Purpose |
| NumberofElements | 2 |
| OutputType | Open-Collector, CMOS, MOS, TTL |
| Voltage-SupplySingle/Dual(±) | 3V ~ 36V, ±1.5V ~ 18V |
| Voltage-InputOffset(Max) | 2.5mV @ 36V |
| Current-InputBias(Max) | 0.025µA @ 5V |
| Current-Output(Typ) | 21mA @ 5V |
| Current-Quiescent(Max) | 600µA |
| PropagationDelay(Max) | 1µs (Typ) |
| OperatingTemperature | -40°C ~ 125°C |
| Package/Case | SOT-23-8 |
| MountingType | Surface Mount |
Présentation
Description
Key features include low power consumption and the ability to function with single or dual power supplies. The LM2903BIDDFR contains two independent voltage comparators designed to operate from a single power supply over a wide range of voltages. It offers rail-to-rail input capabilities, enhancing its versatility in various circuit designs.
The device offers an open-drain output, which allows for wired-AND configurations with other comparators or logic devices. It is typically used in applications like zero-crossing detectors, event triggers, and various signal processing tasks where precise voltage level detection is necessary. The "B" in the model name indicates a specified temperature range, ensuring stable performance in varying environmental conditions. The "DDFR" suffix denotes the package type and tape-and-reel packaging for automated assembly.
Equivalent
1. LM393 series from Texas Instruments or other manufacturers
2. NXP's LM393DR2G
3. ON Semiconductor's LM393DG
4. STMicroelectronics' LM193 or LM293 series
5. Microchip's MCP6542
These alternatives offer similar functionality and specifications, but differences in exact performance parameters, package type, and temperature range should be reviewed to ensure compatibility with specific applications.
Features
1. Wide Supply Voltage Range: It operates from 2 V to 36 V, making it versatile for various applications.
2. Low Input Offset Voltage: Typically around 2 mV, which ensures precision in voltage comparison.
3. Low Power Consumption: It features low quiescent current, which is beneficial for energy-efficient designs.
4. Open-Collector Outputs: Allows for wired-AND connections and interfacing with other logic levels.
5. Wide Temperature Range: Suitable for industrial applications, it operates effectively from -40°C to 125°C.
6. Fast Response Time: Ensures quick reaction to changes in input signals.
7. High Input Impedance: Minimizes loading on the preceding circuit.
8. Small Package: Available in various compact packages, including SOIC, making it suitable for space-constrained applications.
These features make the LM2903BIDDFR ideal for a variety of applications, including level shifting and voltage monitoring.
Pinout
The LM2903BIDDFR comes in an 8-pin package. The pin configuration is as follows:
1. VCC (Pin 8): Positive power supply voltage.
2. GND (Pin 4): Ground connection.
3. IN A- (Pin 2): Inverting input for comparator A.
4. IN A+ (Pin 3): Non-inverting input for comparator A.
5. OUT A (Pin 1): Output for comparator A.
6. IN B- (Pin 6): Inverting input for comparator B.
7. IN B+ (Pin 5): Non-inverting input for comparator B.
8. OUT B (Pin 7): Output for comparator B.
Each comparator in the LM2903BIDDFR operates independently, allowing for dual signal comparison in one chip, making it versatile for various applications requiring voltage comparison.
Manufacturer
Application
1. Voltage Level Detection: Used in battery management systems to monitor voltage levels.
2. Oscillator Circuits: Functions in timing and waveform generation applications.
3. Analog Signal Processing: Utilized in signal comparison tasks in consumer electronics.
4. Sensor Interface: Acts in interfacing sensors with digital systems by comparing analog inputs.
5. Zero-Crossing Detectors: Employed in AC applications for phase detection.
These features make it suitable for automotive, industrial, and consumer electronics.