LM393A-SR

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LM393A-SR

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  • Manufacturer
  • Mfr. Part #LM393A-SR
  • Package
  • Datasheet
  • In Stock21644

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Specifications

Part Status Active
Type Differential
Number of Elements 2
Output Type Open-Collector, CMOS, TTL
Voltage - Supply, Single/Dual (±) 2.5V ~ 36V, ±1.25V ~ 18V
Voltage - Input Offset (Max) 6mV @ 5V
Current - Input Bias (Max) 0.001µA @ 5V
Current - Output (Typ) 10mA
Current - Quiescent (Max) 300µA
Operating Temperature -40°C ~ 125°C
Package / Case 8-SOIC (0.154", 3.90mm Width)
Mounting Type Surface Mount
Supplier Device Package 8-SOP

Overview

Description

The LM393A-SR is a dual comparator IC widely used in electronic circuits for comparing two voltage levels and providing a digital output. It features two separate voltage comparator circuits in a single package, capable of functioning with a wide supply voltage range from 2V to 36V. The device is known for its low power consumption and high input impedance, making it suitable for battery-operated devices.
The LM393A-SR has an open-collector output, allowing it to interface with different voltage levels and providing flexibility in circuit design. Its typical applications include voltage level detection, temperature sensing, and oscillators. The IC operates with a fast response time and has a low offset voltage, enhancing accuracy.
Additionally, it is available in various package types, including DIP and surface mount, making it adaptable to different PCB layouts. Overall, the LM393A-SR is a reliable and versatile component for various analog and digital applications.

Features

The LM393A-SR is a dual comparator designed for precision analog signal processing. Key features include:
1. Dual Comparator: Contains two independent, high-speed comparators, which can compare two input voltages and output a digital signal based on the comparison.
2. Wide Supply Voltage Range: Operates on a supply voltage from 2V to 36V, making it versatile for various applications.
3. Low Input Offset Voltage: Offers a typical input offset voltage of 2mV, ensuring accurate comparisons.
4. High Speed: Fast response time with a typical propagation delay of 1.3µs at a 5V supply, suitable for high-speed applications.
5. Open-Collector Output: Outputs are open-collector, allowing for wired-AND configurations and interfacing with different voltage levels.
6. Low Power Consumption: Designed for low power, consuming only 0.5mA per comparator, making it energy-efficient.
7. Temperature Range: Rated for operation between -40°C to 125°C, suitable for industrial and automotive applications.
These features make the LM393A-SR ideal for signal conditioning, threshold detection, and various control applications.

Package

The LM393A-SR is typically available in an SOIC-8 (Small Outline Integrated Circuit) package type. This surface-mount package is designed for efficient space usage on PCBs.

Pinout

The LM393A-SR is a dual comparator integrated circuit (IC) with a total of 8 pins. The pin configuration and functions are as follows:
1. V-: Ground connection (negative supply voltage).
2. Inverting Input (Comparator 1): The input where the reference voltage is applied for the first comparator.
3. Non-Inverting Input (Comparator 1): The input where the signal voltage is applied for the first comparator.
4. Output (Comparator 1): The output of the first comparator, which indicates the comparison result.
5. Inverting Input (Comparator 2): The input where the reference voltage is applied for the second comparator.
6. Non-Inverting Input (Comparator 2): The input where the signal voltage is applied for the second comparator.
7. Output (Comparator 2): The output of the second comparator, indicating its comparison result.
8. V+: Positive supply voltage connection.
The LM393A-SR is widely used in applications requiring voltage level comparisons.

Manufacturer

The LM393A-SR is manufactured by Texas Instruments (TI). Texas Instruments is a global technology company that designs and manufactures semiconductors and various integrated circuits. Founded in 1930, TI is well-known for its analog and embedded processing products, catering to a wide range of industries including automotive, industrial, communications, and consumer electronics. The LM393A-SR is a dual comparator, commonly used in various electronic applications for comparing voltage levels. TI is recognized for its innovation and commitment to quality in the semiconductor field.

Application

The LM393A-SR is a dual comparator used in various applications, including analog signal processing, voltage level detection, temperature sensing, and over-voltage protection. It's commonly found in automotive systems, industrial equipment, and consumer electronics for tasks like signal conditioning, zero-crossing detection, and comparing sensor outputs. Its low power consumption and ability to operate over a wide voltage range make it suitable for battery-powered devices as well.

Equivalent

Equivalent products to the LM393A-SR chip include the LM393, TLV393, and LM2903. Other alternatives may include the MCP6002, MAX9014, and LM358, depending on specific application requirements such as voltage range, power supply, and package type. Always check datasheets for compatibility.

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