LM2903XK

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LM2903XK

IC COMPARATOR 2 GEN PUR 8SOIC

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  • Mfr. Part #LM2903XK
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  • Datasheet
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Specifications

Part Status Active
Type Standard (General Purpose)
Number of Elements 2
Output Type Open-Drain
Voltage - Supply, Single/Dual (±) 3.3V ~ 36V
Voltage - Input Offset (Max) 3.5mV @ 36V
Current - Input Bias (Max) 50pA @ 5V
Current - Output (Typ) 23mA
Current - Quiescent (Max) 180µA
Propagation Delay (Max) 2.5µs (Typ)
Operating Temperature -40°C ~ 125°C
Package / Case 8-SOIC (0.154", 3.90mm Width)
Mounting Type Surface Mount
Supplier Device Package 8-SOIC
Base Product Number LM2903

Overview

Description

The LM2903XK is a dual comparator integrated circuit (IC) designed for use in a variety of applications where voltage comparison is essential. It features two independent, high-gain, and high-speed comparators with open-collector outputs, allowing it to handle a wide range of input voltages while consuming low power.
Key features include a wide supply voltage range (typically from 2V to 36V), low offset voltage, and a high common-mode voltage range. The LM2903XK is particularly useful in applications such as signal conditioning, zero-crossing detectors, and window comparators.
Its open-collector output allows for easy interfacing with different logic levels and provides flexibility in design. The device is available in various packages, making it suitable for both through-hole and surface-mount applications. Overall, the LM2903XK is an essential component for electronic circuits requiring reliable voltage comparisons and signal processing.

Features

The LM2903XK is a dual comparator integrated circuit designed for various applications. Key features include:
1. Dual Comparator: Contains two independent, high-gain, voltage comparators with open-collector outputs.
2. Wide Supply Voltage Range: Operates from a single supply of 2V to 36V or dual supplies of ±1V to ±18V.
3. Low Input Offset Voltage: Provides high accuracy with a typical input offset voltage of 2mV.
4. High-Speed Operation: Capable of switching speeds up to 1.5 µs.
5. Low Power Consumption: Designed for low power usage, making it suitable for battery-operated devices.
6. Common-Mode Voltage Range: Wide common-mode input voltage range, allowing it to be used in various circuit configurations.
7. Temperature Range: Operates over a temperature range of -40°C to +125°C.
8. Open-Collector Output: Allows for wired-AND configurations and easy interfacing with different voltage levels.
These features make the LM2903XK ideal for applications in signal processing, voltage level detection, and various control systems.

Package

The LM2903XK is available in an 8-pin dual inline package (DIP) and also comes in surface mount options like the SOIC-8.

Pinout

The LM2903XK is a dual comparator integrated circuit with a total of 8 pins. The pin configuration and functions are as follows:
1. Non-inverting Input of Comparator 1 (V+): Input for the first comparator.
2. Inverting Input of Comparator 1 (V-): Reference input for the first comparator.
3. Output of Comparator 1 (OUT1): Output signal for the first comparator.
4. Ground (GND): Common ground connection.
5. Non-inverting Input of Comparator 2 (V+): Input for the second comparator.
6. Inverting Input of Comparator 2 (V-): Reference input for the second comparator.
7. Output of Comparator 2 (OUT2): Output signal for the second comparator.
8. Supply Voltage (VCC): Positive supply voltage for the IC.
The LM2903XK is widely used in applications requiring voltage level comparisons, such as in analog-to-digital converters, oscillators, and signal conditioning circuits. It operates over a wide voltage range and offers low power consumption.

Manufacturer

The LM2903XK is manufactured by Texas Instruments (TI), a prominent American technology company headquartered in Dallas, Texas. Texas Instruments is known for designing and producing semiconductors and various integrated circuits, particularly for the electronics industry. The company specializes in analog and digital signal processing, embedded processing, and a wide range of other semiconductor products. Texas Instruments serves diverse markets, including automotive, industrial, and consumer electronics, and is recognized for its innovation in developing solutions that enhance electronic devices' performance and efficiency.

Application

The LM2903XK is a dual comparator used in various applications including voltage level detection, zero-crossing detection, oscillators, and pulse-width modulation circuits. It can also be utilized in signal conditioning, comparator-based analog-to-digital conversion, and as a voltage window comparator in alarm systems. Its wide supply voltage range and low power consumption make it suitable for battery-operated devices and automotive applications.

Equivalent

The LM2903XK is a dual comparator. Equivalent products include the LM393 (dual comparator), TLV3702 (dual voltage comparator), and MCP6001 (single comparator). Other alternatives are the NLM2903 (similar functions) and the MAX9024 (high-speed comparator). Always verify specifications for compatibility.

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