LM2903DGKR

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LM2903DGKR

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IC COMPARATOR DUAL GP 8MSOP

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  • メーカー品番 #LM2903DGKR

  • パッケージ VSSOP (DGK)-8

  • 在庫状況4584

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仕様

属性
Package Tape & Reel (TR),Cut Tape (CT)
Series Trophy
ProductStatus Active
Type General Purpose
NumberofElements 2
OutputType CMOS, MOS, Open-Collector, TTL
Voltage-SupplySingle/Dual(±) 2V ~ 36V, ±1V ~ 18V
Voltage-InputOffset(Max) 7mV @ 5V
Current-InputBias(Max) 0.25µA @ 5V
Current-Output(Typ) 16mA @ 5V
Current-Quiescent(Max) 2.5mA
OperatingTemperature -40°C ~ 125°C
Package/Case 8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
MountingType Surface Mount

概要

Description

The LM2903DGKR is a dual voltage comparator from Texas Instruments. It consists of two independent voltage comparators designed to operate from a single power supply over a wide range of voltages. This makes it suitable for a variety of applications, including consumer electronics, automotive, and industrial systems.
Key features include low input offset voltage, low power consumption, and an ability to operate with a single or dual power supply. The LM2903DGKR is often used for signal conditioning, voltage level detection, and sensor interfacing tasks.
Packaged in a compact, surface-mount format (such as SOIC or VSSOP), it is easy to integrate into PCB designs. The device is robust and can tolerate a wide operating temperature range, enhancing reliability in harsh environments.
Overall, the LM2903DGKR is valued for its versatility, reliability, and efficiency in various analog electronic circuits.

Equivalent

The LM2903DGKR is a dual voltage comparator. Equivalent products include the LM393 series (e.g., LM393 LM393N) and other similar dual comparators like the TLV7031 and MC3303 from manufacturers like Texas Instruments, STMicroelectronics, and ON Semiconductor. Ensure compatibility by checking specifications such as supply voltage range, input offset voltage, and package type.

Features

The LM2903DGKR is a dual comparator IC designed for general-purpose applications. Key features include:
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 Supply Current: Minimizes power consumption with low quiescent current.
4. Open-Collector Output: Allows for wired-OR configurations and interfacing with various logic circuits.
5. Wide Common-Mode Range: Input voltage can exceed the negative supply voltage, enhancing versatility.
6. Temperature Range: Operates effectively from -40°C to 125°C, suitable for industrial environments.
7. High Sensitivity: Features a typical input offset voltage of just a few millivolts, ensuring precision in applications.
8. Package: Available in a small-outline TSSOP-8 package, which saves space on PCBs.
These features make the LM2903DGKR suitable for use in various applications, including sensor signal conditioning, zero-crossing detectors, and voltage level detection.

Pinout

The LM2903DGKR is a dual comparator integrated circuit. It typically comes in an 8-pin package. Here’s a concise description of the pin functions:
1. VCC (Pin 8): This is the positive power supply pin.
2. GND (Pin 4): This is the ground pin.
3. IN1- (Pin 2): Inverting input for comparator 1.
4. IN1+ (Pin 3): Non-inverting input for comparator 1.
5. OUT1 (Pin 1): Output for comparator 1.
6. IN2- (Pin 6): Inverting input for comparator 2.
7. IN2+ (Pin 5): Non-inverting input for comparator 2.
8. OUT2 (Pin 7): Output for comparator 2.
The LM2903DGKR operates as two independent voltage comparators. Each comparator can compare two voltages applied to its inputs and provide a digital output based on the comparison. The output is typically an open-collector type, meaning it can be used for wired-AND configurations with external pull-up resistors. This IC is commonly used in various applications, including voltage level detection and sensor interfacing.

Manufacturer

The LM2903DGKR is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits. It is one of the largest semiconductor companies in the world and has a diverse product portfolio that includes analog chips and embedded processors, among other electronic components. TI's products are widely used in various applications, including industrial, automotive, personal electronics, communications, and enterprise systems. The company is known for its innovation in the semiconductor industry and has a significant presence in research and development to support advancements in electronics and technology.

Application

The LM2903DGKR is a dual comparator IC commonly used in various applications. Its primary areas include:
1. Voltage Comparator: Comparing two voltage levels in power supplies and battery management systems.
2. Analog-to-Digital Conversion: Used in ADC circuits to digitize analog signals.
3. Signal Conditioning: Enhancing signal quality for sensors and transducers.
4. Oscillator Circuits: Generating timing signals in clock and waveform generator circuits.
5. Zero-Crossing Detectors: Identifying zero voltage points in AC signals.
6. Level Shifters: Converting signal levels for compatibility between different circuit sections.
7. Overvoltage/Undervoltage Protection: Monitoring voltage levels in safety circuits.
These features make it versatile for automotive, industrial, and consumer electronics.

Package

The LM2903DGKR is a dual comparator integrated circuit packaged in an 8-pin VSSOP (Very Thin Shrink Small Outline Package). This package type is compact, suitable for space-constrained applications, and provides reliable performance in various electronic devices.

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