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INA137UA
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INA137UA

Product Overview

Category: Integrated Circuit (IC)

Use: The INA137UA is a high-performance audio differential line receiver. It is designed to convert a differential input signal into a single-ended output signal, making it suitable for various audio applications.

Characteristics: - High common-mode rejection ratio (CMRR) - Low distortion and noise - Wide operating voltage range - Small package size - Easy to integrate into audio systems

Package: The INA137UA is available in a small outline integrated circuit (SOIC) package.

Essence: The essence of the INA137UA lies in its ability to accurately convert differential audio signals into single-ended signals while maintaining high fidelity and minimizing noise and distortion.

Packaging/Quantity: The INA137UA is typically sold in reels or tubes containing multiple units per package.

Specifications

  • Supply Voltage Range: ±2.25V to ±18V
  • Input Common-Mode Voltage Range: -13V to +13V
  • Output Voltage Swing: 0.1V to Vcc-1.5V
  • Operating Temperature Range: -40°C to +85°C
  • Gain Bandwidth Product: 10 MHz
  • Input Impedance: 20 kΩ
  • Output Impedance: 50 Ω
  • Total Harmonic Distortion: 0.0006% (typical)

Detailed Pin Configuration

The INA137UA has a total of 8 pins:

  1. V-
  2. IN-
  3. REF
  4. OUT
  5. GND
  6. OUT
  7. REF
  8. IN+

Functional Features

  • Differential input stage for high common-mode rejection
  • Precision gain-setting resistors for accurate gain control
  • Output stage with low impedance drive capability
  • Internal frequency compensation for stability

Advantages and Disadvantages

Advantages: - High common-mode rejection ratio ensures accurate signal conversion - Low distortion and noise for high-fidelity audio reproduction - Wide operating voltage range allows flexibility in system design - Small package size enables compact audio system integration

Disadvantages: - Limited output voltage swing may not be suitable for certain applications requiring higher output levels - Requires external gain-setting resistors for precise gain control

Working Principles

The INA137UA operates by receiving a differential audio input signal at the IN+ and IN- pins. The internal circuitry amplifies and converts this differential signal into a single-ended output signal at the OUT pin. The differential input stage provides high common-mode rejection, minimizing interference and noise. Precision gain-setting resistors allow for accurate gain control, while the output stage provides low impedance drive capability.

Detailed Application Field Plans

The INA137UA is commonly used in various audio applications, including:

  1. Professional audio equipment
  2. Home theater systems
  3. Automotive audio systems
  4. Audio mixers and consoles
  5. Public address systems

Detailed and Complete Alternative Models

  1. INA137P - DIP package variant of INA137UA
  2. INA138 - Higher voltage version with extended supply range
  3. INA136 - Lower voltage version with reduced supply range
  4. INA163 - Differential line receiver with additional features such as mute control

These alternative models offer similar functionality to the INA137UA but may have different package options or additional features to suit specific application requirements.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av INA137UA i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of INA137UA in technical solutions:

  1. Q: What is INA137UA? A: INA137UA is a high-performance audio differential line receiver that can be used in various audio applications.

  2. Q: What is the purpose of using INA137UA in audio systems? A: INA137UA helps in converting differential audio signals into single-ended signals, making it easier to interface with other audio components.

  3. Q: What is the voltage supply range for INA137UA? A: INA137UA operates on a voltage supply range of ±2.25V to ±18V.

  4. Q: Can INA137UA handle balanced audio signals? A: Yes, INA137UA is specifically designed to handle balanced audio signals and provides excellent common-mode rejection.

  5. Q: What is the maximum common-mode voltage range supported by INA137UA? A: INA137UA supports a wide common-mode voltage range of -13V to +13V.

  6. Q: Does INA137UA require any external components for operation? A: Yes, INA137UA requires a few external components such as resistors and capacitors for proper operation.

  7. Q: What is the output voltage swing of INA137UA? A: The output voltage swing of INA137UA is typically ±12V when operating on a ±15V supply.

  8. Q: Can INA137UA be used in professional audio equipment? A: Yes, INA137UA is commonly used in professional audio equipment like mixers, amplifiers, and audio interfaces.

  9. Q: Is INA137UA suitable for high-fidelity audio applications? A: Yes, INA137UA offers low distortion and high bandwidth, making it suitable for high-fidelity audio applications.

  10. Q: Are there any alternative devices to INA137UA? A: Yes, there are other differential line receivers available in the market, such as INA163 and THAT1646, which can be considered as alternatives to INA137UA depending on specific requirements.

Please note that these answers are general and may vary based on specific application requirements.