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LM2903AVQDR
+Lista de MateriaisIC DUAL GP DIFF COMPARATR 8SOIC
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FabricanteTexas Instruments
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Peça do Fabricante #LM2903AVQDR
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Pacote SOIC (D)-8
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Especificações
| Atributo | Valor |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | Differential |
| NumberofElements | 2 |
| OutputType | CMOS, MOS, Open-Drain, TTL |
| Voltage-SupplySingle/Dual(±) | 2V ~ 36V, ±1V ~ 18V |
| Voltage-InputOffset(Max) | 2mV @ 32V |
| Current-InputBias(Max) | 0.25µA @ 5V |
| Current-Output(Typ) | 20mA |
| Current-Quiescent(Max) | 2.5mA |
| OperatingTemperature | -40°C ~ 125°C |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
| MountingType | Surface Mount |
Visão Geral
Description
The LM2903AVQDR provides an open-collector output, which allows it to interface easily with various digital and analog systems. It's capable of driving loads connected to different voltage levels, a feature useful in mixed-signal environments. With industrial-level temperature range capabilities, it performs reliably in harsh conditions.
Manufactured in a Small Outline Integrated Circuit (SOIC) package, the LM2903AVQDR is compact for space-constrained applications. Its versatility makes it suitable for use in timing circuits, zero-crossing detectors, and voltage sensing applications. The device is commonly used in automotive, industrial, and consumer electronics due to its robustness and reliability.
Equivalent
Features
1. Dual Comparator: Contains two independent voltage comparators.
2. Wide Supply Voltage Range: Operates from 2V to 36V for single supply, and ±1V to ±18V for dual supply.
3. Low Input Offset Voltage: Typically around 2mV.
4. Low Input Bias Current: Approximately 25nA.
5. Low Output Saturation Voltage: Output saturation voltage is typically 200mV at 4mA.
6. Open Collector Output: Allows for wired-AND connections.
7. Wide Common-Mode Voltage Range: Includes ground, making it suitable for single-supply operations.
8. Low Power Consumption: Ideal for battery-powered applications.
9. Temperature Range: Supports industrial temperature range from -40°C to 125°C.
10. Package Options: Available in SOIC, TSSOP, and other surface-mount packages.
These features make the LM2903AVQDR suitable for a variety of applications, including voltage level detection, waveform generators, and simple analog-to-digital converters.
Pinout
Here is the typical pin configuration and function:
1. Pin 1 (OUT1): Output for the first comparator
2. Pin 2 (IN1-): Inverting input for the first comparator
3. Pin 3 (IN1+): Non-inverting input for the first comparator
4. Pin 4 (GND): Ground
5. Pin 5 (IN2+): Non-inverting input for the second comparator
6. Pin 6 (IN2-): Inverting input for the second comparator
7. Pin 7 (OUT2): Output for the second comparator
8. Pin 8 (VCC): Positive power supply voltage
The LM2903AVQDR is used in applications requiring precise voltage level detection, such as in zero-crossing detectors, level shifting, and other analog signal processing tasks.
Manufacturer
Application
1. Voltage Comparison: It compares two voltages and outputs a digital signal based on the comparison, useful in zero-crossing detectors, over-voltage detectors, and window comparators.
2. Sensor Signal Processing: Used in temperature, light, and other sensor interfaces to process and convert analog signals into digital logic outputs.
3. Pulse Width Modulation (PWM): Utilized in motor control circuits and power management systems to modulate signal widths.
4. Oscillator Circuits: Functions as a frequency generator or timer by creating oscillating waveforms.
5. Level Shifting: Converts voltage levels in mixed-signal systems.
Its low power consumption and wide voltage range make it suitable for automotive and industrial applications.