ON Semiconductor
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L272AM
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L272AM

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Amplifier
  • Characteristics: Dual power operational amplifier
  • Package: DIP-8 (Dual In-line Package with 8 pins)
  • Essence: High-performance audio amplifier
  • Packaging/Quantity: Available in tubes or reels, quantity varies based on supplier

Specifications

  • Supply Voltage: ±2V to ±18V
  • Input Offset Voltage: 2mV (maximum)
  • Input Bias Current: 20nA (maximum)
  • Input Offset Current: 5nA (maximum)
  • Gain Bandwidth Product: 1.4MHz (typical)
  • Slew Rate: 0.5V/µs (typical)
  • Output Current: 40mA (maximum)
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The L272AM IC has a total of 8 pins arranged as follows:

``` ___________ | | 1 | | 8 |___________|

Pin 1: Non-Inverting Input 1 Pin 2: Inverting Input 1 Pin 3: Negative Power Supply (-Vcc) Pin 4: Ground (GND) Pin 5: Output 1 Pin 6: Output 2 Pin 7: Inverting Input 2 Pin 8: Non-Inverting Input 2 ```

Functional Features

  • Dual power supply operation (+Vcc and -Vcc)
  • Low input offset voltage and current for accurate amplification
  • Wide gain bandwidth product for high-frequency applications
  • High output current capability for driving various loads
  • Short-circuit protection to prevent damage in case of output short-circuits

Advantages and Disadvantages

Advantages: - Dual power supply allows for versatile applications - Low input offset voltage ensures accurate amplification - High output current capability enables driving different loads - Short-circuit protection enhances reliability

Disadvantages: - Limited operating temperature range (-40°C to +85°C) - Relatively low slew rate compared to some other amplifiers

Working Principles

The L272AM is a dual power operational amplifier designed for audio amplification. It operates with both positive and negative power supplies, allowing for flexible use in various applications. The amplifier has low input offset voltage and current, ensuring precise amplification of audio signals. With a wide gain bandwidth product, it can handle high-frequency audio signals effectively. The L272AM also provides a high output current capability, enabling it to drive different types of loads. Additionally, the IC incorporates short-circuit protection to safeguard against potential damage caused by output short-circuits.

Detailed Application Field Plans

The L272AM is commonly used in audio-related applications, such as:

  1. Audio amplifiers for home stereo systems
  2. Headphone amplifiers
  3. Guitar amplifiers
  4. Public address (PA) systems
  5. Portable audio devices
  6. Automotive audio systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the L272AM are:

  1. LM358: Dual operational amplifier with low input offset voltage and current.
  2. TL072: Dual JFET-input operational amplifier with high gain bandwidth product.
  3. NE5532: Dual low-noise operational amplifier with high output current capability.

These alternative models can be considered based on specific requirements and application needs.

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רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של L272AM בפתרונות טכניים

Sure! Here are 10 common questions and answers related to the application of L272AM in technical solutions:

  1. Q: What is L272AM? A: L272AM is a dual operational amplifier IC (integrated circuit) commonly used in various electronic applications.

  2. Q: What is the voltage supply range for L272AM? A: The voltage supply range for L272AM is typically between +3V and +32V.

  3. Q: What is the maximum output current of L272AM? A: The maximum output current of L272AM is around 40mA per channel.

  4. Q: Can L272AM be used as a voltage follower? A: Yes, L272AM can be used as a voltage follower by connecting the input directly to the non-inverting terminal and the output to the inverting terminal.

  5. Q: Is L272AM suitable for audio applications? A: Yes, L272AM can be used in audio applications such as headphone amplifiers or audio preamplifiers.

  6. Q: Can L272AM be used in low-power applications? A: Yes, L272AM is designed for low-power applications and has a low quiescent current consumption.

  7. Q: What is the typical gain bandwidth product of L272AM? A: The typical gain bandwidth product of L272AM is around 1MHz.

  8. Q: Can L272AM operate in a single-supply configuration? A: Yes, L272AM can operate in a single-supply configuration by biasing the inputs at half the supply voltage.

  9. Q: Can L272AM be used in active filter circuits? A: Yes, L272AM can be used in active filter circuits due to its high input impedance and low output impedance.

  10. Q: Is L272AM suitable for precision applications? A: No, L272AM is not specifically designed for precision applications as it has a moderate level of input offset voltage and bias current.

Please note that the answers provided are general and may vary depending on specific circuit designs and requirements.