LM393M

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LM393M

LM393-N LOW POWER LOW OFFSET VOL

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規格

Package Bulk
ProductStatus Active
Type Differential
NumberofElements 2
Voltage-SupplySingle/Dual(±) 2V ~ 36V, ±1V ~ 18V
Voltage-InputOffset(Max) 5mV @ 5V
Current-InputBias(Max) 0.25µA @ 5V
Current-Output(Typ) 18mA @ 5V
Current-Quiescent(Max) 2.5mA
OperatingTemperature 0°C ~ 70°C
Package/Case 8-SOIC (0.154, 3.90mm Width)
MountingType Surface Mount

概述

Description

The LM393M is a dual comparator integrated circuit (IC) designed for various analog signal processing applications. It features two independent, high-speed comparators capable of functioning with a wide supply voltage range, typically from 2V to 36V. The device is characterized by low input offset voltage, high gain, and fast response time, making it suitable for use in voltage level detection, signal conditioning, and analog-to-digital conversion.
The LM393M operates with open-collector outputs, allowing for easy interfacing with various logic levels and enabling multiple comparators to be connected to the same output line. Its compact size and low power consumption make it ideal for battery-powered devices and space-constrained applications.
Common uses include overvoltage and undervoltage detection, zero-crossing detection in AC signals, and as part of feedback loops in control systems. The LM393M is widely utilized in consumer electronics, automotive systems, and industrial applications due to its versatility and reliability.

Features

The LM393M is a dual comparator integrated circuit (IC) designed for various applications in analog signal processing. Key features include:
1. Dual Comparators: Contains two independent, high-gain voltage comparators.
2. Wide Voltage Range: Operates from a single supply of 2V to 36V or dual supplies of ±1V to ±18V.
3. Low Power Consumption: Features low quiescent current consumption, making it suitable for battery-operated devices.
4. High Input Impedance: Provides high input impedance to minimize loading effects on the circuit.
5. Output Compatibility: Outputs can drive TTL logic levels, making it versatile for interfacing with digital systems.
6. Temperature Range: Designed to operate over a wide temperature range (-40°C to +125°C).
7. Hysteresis Capability: Can be configured for positive feedback, allowing for stable threshold levels in applications like oscillators.
8. Compact Package: Available in an 8-pin DIP or SOIC package for easy integration into circuits.
These features make the LM393M suitable for applications like zero-crossing detectors, window comparators, and analog-to-digital converter circuits.

Package

The LM393M is typically packaged in an 8-pin SOIC (Small Outline Integrated Circuit) form factor. It is a dual comparator IC commonly used in various electronic applications.

Pinout

The LM393M is a dual comparator integrated circuit with a total of 8 pins. Here is the pin count and their functions:
1. Pin 1 (Output 1): Output of the first comparator.
2. Pin 2 (Inverting Input 1): Inverting input of the first comparator.
3. Pin 3 (Non-inverting Input 1): Non-inverting input of the first comparator.
4. Pin 4 (V- or Ground): Negative power supply or ground connection.
5. Pin 5 (Non-inverting Input 2): Non-inverting input of the second comparator.
6. Pin 6 (Inverting Input 2): Inverting input of the second comparator.
7. Pin 7 (Output 2): Output of the second comparator.
8. Pin 8 (V+ or Positive Supply): Positive power supply connection.
The LM393M is commonly used in applications requiring voltage level comparison, such as in oscillators, signal conditioning, and voltage monitoring.

Manufacturer

The LM393M is a dual comparator integrated circuit manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components, including analog and digital processing chips, microcontrollers, and sensors. Founded in 1930, TI is known for its innovations in the field of electronics and plays a key role in various industries, including automotive, industrial, communications, and consumer electronics. The company focuses on developing technology that enhances efficiency and performance in electronic designs.

Application

The LM393M is a dual comparator used in various applications, including voltage level detection, signal conditioning, and analog-to-digital conversion. It serves in temperature sensing circuits, over-voltage and under-voltage protection, pulse-width modulation, and as a zero-crossing detector. Its low power consumption makes it suitable for battery-operated devices and industrial automation systems.

Equivalent

Equivalent products to the LM393M chip include the TLV3702, LM2903, MCP601, and LMV7219. These chips are dual comparators with similar voltage and current characteristics, but it's essential to check specific datasheets for exact pin configurations and performance specifications.

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