LM2903MX

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LM2903MX

IC COMPARATOR DUAL VOLT 8-SOIC

  • 제조업체
  • Mfr.부분 #LM2903MX
  • 패키지 SOIC-8
  • 데이터시트
  • 재고 있음5838

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사양

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Obsolete
Type General Purpose
NumberofElements 2
OutputType CMOS, DTL, ECL, MOS, Open-Collector, TTL
Voltage-SupplySingle/Dual(±) 2V ~ 36V, ±1V ~ 18V
Voltage-InputOffset(Max) 7mV @ 30V
Current-InputBias(Max) 0.25µA @ 5V
Current-Output(Typ) 16mA @ 5V
Current-Quiescent(Max) 2.5mA
OperatingTemperature -40°C ~ 85°C
Package/Case 8-SOIC (0.154, 3.90mm Width)
MountingType Surface Mount

개요

Description

The LM2903MX is a dual comparator integrated circuit designed for various applications in analog signal processing. It features two independent comparators that can operate from a single supply voltage ranging from 2V to 36V, making it versatile for battery-operated devices. The LM2903MX is characterized by low input bias current, high speed, and a wide input voltage range, allowing it to effectively compare two voltage levels and provide a digital output based on the comparison.
Key specifications include a typical response time of 300 ns, a low supply current of around 100 µA per comparator, and the ability to operate with input voltages that can extend beyond the supply rails. Its open-collector output configuration allows for easy interfacing with other logic families. The device is often used in applications such as voltage level detection, temperature monitoring, and oscillators. The LM2903MX is housed in a compact surface-mount package, facilitating integration into modern electronic circuits.

Features

The LM2903MX is a dual comparator integrated circuit designed for high-speed, low-power applications. Key features include:
1. Dual Comparator: Contains two independent, high-gain comparators.
2. Wide Voltage Range: Operates over a supply voltage range from 2V to 36V.
3. Low Power Consumption: Typically consumes low quiescent current, enhancing efficiency in battery-operated devices.
4. Input Voltage Range: Can handle input voltages from the negative supply up to 2V below the positive supply.
5. Fast Response Time: Offers a typical response time of 300 ns, suitable for fast signal processing.
6. Open-Collector Output: Provides the ability to interface with various voltage levels and allows for wired-AND configurations.
7. Temperature Range: Functional over a temperature range of -40°C to +125°C, enabling use in harsh environments.
8. Hysteresis: Optional hysteresis can be added externally to improve noise immunity.
These features make the LM2903MX ideal for applications such as voltage level detection, signal conditioning, and comparator circuits in automotive and industrial systems.

Package

The LM2903MX is packaged in an SOIC-8 (Small Outline Integrated Circuit) format, which is a surface-mount package with eight pins.

Pinout

The LM2903MX is a dual comparator integrated circuit with a total of 8 pins. The pin count and their functions are as follows:
1. Pin 1 (Output A): Output of the first comparator.
2. Pin 2 (Inverting Input A): Inverting input for the first comparator.
3. Pin 3 (Non-Inverting Input A): Non-inverting input for the first comparator.
4. Pin 4 (V- or Ground): Negative power supply or ground connection.
5. Pin 5 (Non-Inverting Input B): Non-inverting input for the second comparator.
6. Pin 6 (Inverting Input B): Inverting input for the second comparator.
7. Pin 7 (Output B): Output of the second comparator.
8. Pin 8 (V+ or Positive Supply): Positive power supply connection.
The LM2903MX is commonly used in various applications such as signal level detection, waveform shaping, and voltage level comparisons. Its dual comparator design allows for efficient handling of multiple signals simultaneously.

Manufacturer

The LM2903MX is manufactured by Texas Instruments (TI), a leading semiconductor company. Founded in 1930, Texas Instruments designs and produces a wide range of electronics components, including analog and embedded processing products. The company is known for its innovations in analog technology and is a major supplier of integrated circuits and semiconductor solutions for various applications, including automotive, industrial, communications, and consumer electronics. Texas Instruments is recognized for its commitment to quality and technological advancement in the electronics industry.

Application

The LM2903MX is a dual voltage comparator used in various applications, including:
1. Signal Conditioning: For level detection and signal comparison in analog circuits.
2. Voltage Level Monitoring: To compare voltages and trigger alarms or indicators.
3. Zero-Crossing Detectors: In phase-locked loops and motor control.
4. Oscillators: In waveform generation circuits.
5. Analog-to-Digital Converters: As a part of the conversion process.
Its low power consumption and wide voltage range make it suitable for battery-operated devices.

Equivalent

The LM2903MX is a dual comparator. Equivalent products include the LM393, LM2901, and LM2902. Other alternatives are the TLC3702, MCP6002, and MAX9010, which may offer different characteristics in terms of supply voltage, speed, and packaging. Always check the specific electrical specifications and pin configurations to ensure compatibility for your application.

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