LM393D

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LM393D

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COMPARATOR

  • メーカーオンセミコンダクター社

  • メーカー品番 #LM393D

  • データシート LM393D DataSheet

  • パッケージ SOIC-8

  • 在庫状況6380

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仕様

属性 値
Package / Case Tube
Part Status Obsolete
Type General Purpose
Number of Elements 2
Output Type CMOS, DTL, ECL, MOS, Open-Collector, TTL
Voltage - Supply, Single/Dual (±) 2V ~ 36V, ±1V ~ 18V
Voltage - Input Offset (Max) 5mV @ 30V
Current - Input Bias(Max) 0.25µA @ 5V
Current - Output (Typ) 18mA @ 5V
Current - Quiescent (Max) 2.5mA
Operating Temperature 0°C ~ 70°C
Mounting Type Surface Mount

概要

Description

The LM393D is a dual voltage comparator integrated circuit. It is designed to operate from a wide range of power supply levels, making it versatile for various electronic applications. Each of the two independent voltage comparators within the chip can compare two input voltage levels and provide a digital output indicating which of the inputs is higher.
Key features of the LM393D include low power consumption, a wide supply voltage range (typically 2V to 36V), and the ability to handle single or dual power supply configurations. Its open-collector output allows it to interface easily with various logic levels, making it suitable for level shifting and other interfacing needs.
The LM393D is commonly used in applications such as zero-crossing detectors, voltage level detectors, and in circuits requiring low power and precise voltage comparison. Its compact size and robust performance make it ideal for use in portable devices and battery-operated systems. The chip is available in different packaging options, including surface-mount (SOIC) and through-hole (DIP) versions.

Equivalent

The LM393D is a dual voltage comparator. Equivalent products include LM393N, LM393P, and LM293 series. Other equivalents are LM2903, LM339 (quad comparator), and RC393. These equivalents may vary slightly in specifications like package type and temperature range, so it's important to check the datasheet for compatibility with your specific application.

Features

The LM393D is a dual voltage comparator integrated circuit featuring two independent precision voltage comparators. Key features of the LM393D include:
1. Wide Supply Voltage Range: It operates over a wide range from 2V to 36V for a single supply or ±1V to ±18V for dual supplies.
2. Low Input Offset Voltage: The low offset voltage enhances accuracy and precision in voltage comparison.
3. Low Input Bias Current: This feature minimizes the loading on the input signal sources.
4. Low Power Consumption: Ideal for battery-operated devices, it consumes minimal power.
5. Open-Collector Output: Facilitates interfacing with other logic families and allows for wired-AND configurations.
6. High Gain and Wide Bandwidth: Ensures precise and responsive performance in applications requiring fast switching.
7. Low Output Saturation Voltage: Enhances performance by allowing near-ground-level outputs in low-voltage applications.
8. Temperature Range: Operates efficiently across a wide temperature range from -40°C to 85°C.
These features make the LM393D suitable for applications like zero-crossing detectors, voltage level shifters, and multivibrators.

Pinout

The LM393D is a dual voltage comparator integrated circuit. It is housed in an 8-pin Small Outline Integrated Circuit (SOIC) package. Here is a breakdown of the pin configuration and functions:
1. Pin 1 (Output 1): The output of the first comparator.
2. Pin 2 (Inverting Input 1, -IN1): The inverting input terminal for the first comparator.
3. Pin 3 (Non-inverting Input 1, +IN1): The non-inverting input terminal for the first comparator.
4. Pin 4 (VCC- or GND): The ground or negative supply voltage terminal.
5. Pin 5 (Non-inverting Input 2, +IN2): The non-inverting input terminal for the second comparator.
6. Pin 6 (Inverting Input 2, -IN2): The inverting input terminal for the second comparator.
7. Pin 7 (Output 2): The output of the second comparator.
8. Pin 8 (VCC+): The positive supply voltage terminal.
The LM393D is used to compare voltages and outputs a logic level depending on the comparison, suitable for applications like zero-crossing detectors, voltage level shifters, and oscillator circuits.

Manufacturer

The LM393D is a dual voltage comparator manufactured by several companies, including Texas Instruments, STMicroelectronics, and ON Semiconductor, among others. Texas Instruments (TI), for example, is a well-known American technology company that designs and manufactures semiconductors and various integrated circuits, including analog and embedded processing chips. TI is one of the largest producers of semiconductors globally and is recognized for its innovation and broad product portfolio.
STMicroelectronics, based in Switzerland, is a multinational electronics and semiconductor manufacturer. It provides a wide range of semiconductor solutions for a variety of applications, including automotive, industrial, and consumer electronics.
ON Semiconductor is an American company specializing in energy-efficient electronics. It offers a comprehensive portfolio of power and signal management, logic, discrete, and custom devices for various applications.
These companies are key players in the semiconductor industry, focusing on innovation, quality, and customer service, supplying components that are essential for various electronic devices and systems.

Application

The LM393D is a dual voltage comparator used in various applications due to its ability to operate from a wide range of supply voltages. Key application areas include:
1. Sensor Signal Conditioning: Used in interfacing with sensors to compare sensed signals with reference levels.
2. Zero-Crossing Detectors: Employed in AC signal processing for detecting zero-voltage crossing.
3. Voltage Level Shifters: Converts voltage levels in mixed-signal circuits.
4. Oscillators: Utilized in creating square wave oscillations.
5. Pulse Width Modulation (PWM) Circuits: For controlling power delivery in motor controllers.
6. Limit Detectors: Used in setting threshold levels in various electronic devices.
Its low power consumption and ability to process low voltage signals make it versatile in battery-operated devices.

Package

The LM393D is a dual voltage comparator integrated circuit available in a SOIC-8 package. This small-outline integrated circuit package is suitable for surface mounting on printed circuit boards.

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