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LM2903DR

Name: LM2903DR
Rating: 4.7 (12 reviews)

IC COMPARATOR DUAL 0.8MA 8-SOIC

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製造商。部分 #LM2903DR
包 SOIC (D)-8
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規格

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-SOIC (0.154, 3.90mm Width)
MountingType	Surface Mount

概述

Description

The LM2903DR is a dual comparator integrated circuit (IC) designed for high-speed and low-power applications. It features two independent, high-gain voltage comparators that can operate with a supply voltage range of 2 to 36 V. The LM2903DR has a fast response time, with typical propagation delay times of around 300 ns, making it suitable for use in automotive, industrial, and consumer electronics.
Key features include an open-collector output, which allows for wired-AND configurations, and a wide input voltage range that accommodates both single and dual power supply systems. The LM2903DR is housed in a surface-mount SOIC-8 package, making it suitable for compact designs.
Common applications include zero-crossing detectors, level shifters, and voltage level comparators. The device's low power consumption and versatility make it ideal for battery-operated devices and various signal conditioning tasks.

Features

The LM2903DR is a dual comparator IC designed for various applications requiring voltage comparison. Key features include:
1. Dual Comparator: Contains two independent, high-gain, voltage comparators.
2. Wide Supply Voltage Range: Operates from 2 V to 36 V single supply or ±1 V to ±18 V dual supply.
3. Low Input Offset Voltage: Typically 2 mV, ensuring accurate comparison.
4. High Speed: Typical response time of 1.3 µs, suitable for fast signal processing.
5. Open-Collector Output: Allows easy interfacing with different voltage levels and provides wired-AND capability.
6. Temperature Range: Specified for operation from -40°C to +125°C, making it suitable for automotive and industrial applications.
7. Low Power Consumption: Draws minimal current, enhancing energy efficiency in battery-operated devices.
8. TTL Compatible: Outputs are compatible with TTL logic levels.
The LM2903DR is widely used in applications such as zero-crossing detectors, level shifters, and oscillators.

Package

The LM2903DR is packaged in a 14-pin SOIC (Small Outline Integrated Circuit) package.

Pinout

The LM2903DR is a dual comparator integrated circuit that features 8 pins. The pin functions are as follows:
1. Output A: Output for the first comparator.
2. Inverting Input A: Inverting input for the first comparator.
3. Non-Inverting Input A: Non-inverting input for the first comparator.
4. V-: Negative power supply connection.
5. Output B: Output for the second comparator.
6. Inverting Input B: Inverting input for the second comparator.
7. Non-Inverting Input B: Non-inverting input for the second comparator.
8. V+: Positive power supply connection.
The LM2903DR operates over a wide voltage range and is known for its low power consumption, making it suitable for various applications in signal processing and control systems.

Manufacturer

The LM2903DR is manufactured by Texas Instruments, a leading semiconductor company. Texas Instruments designs and produces a wide range of electronic components, including analog and digital semiconductors, integrated circuits (ICs), and microcontrollers. The company is known for its innovations in analog technology and is a prominent player in the electronics industry, serving various sectors such as automotive, industrial, communications, and consumer electronics. Texas Instruments has a long history of developing products that facilitate advancements in technology and engineering, making it a crucial contributor to the electronics supply chain.

Application

The LM2903DR is a dual comparator integrated circuit commonly used in various applications, including voltage level detection, zero-crossing detection in AC signals, temperature monitoring, and oscillators. It is also utilized in analog-to-digital conversion, pulse-width modulation, and signal conditioning circuits. Its low power consumption and wide supply voltage range make it suitable for battery-operated devices and consumer electronics.

Equivalent

The LM2903DR is a dual comparator. Equivalent products include the TLV3702, LM393, MCP6002, and LTC6752. These alternatives may vary in specifications such as supply voltage range, response time, and input/output characteristics, so it's essential to check the datasheets for specific applications.