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Amplificadores operacionales (op amps)
Amplificadores operacionales para audio

LME49723

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Amplificador operacional de audio de 2 canales, 17 MHz, alta fidelidad y alto rendimiento

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LME49723

ACTIVO
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Detalles del producto

Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 34 GBW (typ) (MHz) 19 Slew rate (typ) (V/µs) 8 Rail-to-rail No Vos (offset voltage at 25°C) (max) (mV) 1 Iq per channel (typ) (mA) 3.35 Vn at 1 kHz (typ) (nV√Hz) 3.2 Features Premium Sound THD + N at 1 kHz (typ) (%) 0.0002 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.025 Architecture Voltage FB CMRR (typ) (dB) 100 Input bias current (max) (pA) 200000
Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 34 GBW (typ) (MHz) 19 Slew rate (typ) (V/µs) 8 Rail-to-rail No Vos (offset voltage at 25°C) (max) (mV) 1 Iq per channel (typ) (mA) 3.35 Vn at 1 kHz (typ) (nV√Hz) 3.2 Features Premium Sound THD + N at 1 kHz (typ) (%) 0.0002 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.025 Architecture Voltage FB CMRR (typ) (dB) 100 Input bias current (max) (pA) 200000
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Easily Drives 600Ω Loads
  • Optimized for Superior Audio Signal Fidelity
  • Output Short Circuit Protection
  • PSRR and CMRR Exceed 100dB (typ)
  • SOIC Package

Key Specifications

  • Power Supply Voltage Range: ±2.5 to ±17 V
  • THD+N (AV = 1, VOUT = 3VRMS, fIN = 1kHz)
    • RL = 2kΩ: 0.0002 % (typ)
    • RL = 600Ω: 0.0002 % (typ)
  • Input Noise Density: 3.6 nV/√Hz (typ)
  • Slew Rate: ±8 V/μs (typ)
  • Gain Bandwidth Product: 17 MHz (typ)
  • Open Loop Gain (RL = 600Ω): 105 dB (typ)
  • Input Bias Current: 200 nA (typ)
  • Input Offset Voltage: 0.3 mV (typ)

All trademarks are the property of their respective owners.

  • Easily Drives 600Ω Loads
  • Optimized for Superior Audio Signal Fidelity
  • Output Short Circuit Protection
  • PSRR and CMRR Exceed 100dB (typ)
  • SOIC Package

Key Specifications

  • Power Supply Voltage Range: ±2.5 to ±17 V
  • THD+N (AV = 1, VOUT = 3VRMS, fIN = 1kHz)
    • RL = 2kΩ: 0.0002 % (typ)
    • RL = 600Ω: 0.0002 % (typ)
  • Input Noise Density: 3.6 nV/√Hz (typ)
  • Slew Rate: ±8 V/μs (typ)
  • Gain Bandwidth Product: 17 MHz (typ)
  • Open Loop Gain (RL = 600Ω): 105 dB (typ)
  • Input Bias Current: 200 nA (typ)
  • Input Offset Voltage: 0.3 mV (typ)

All trademarks are the property of their respective owners.

The LME49723 is part of the ultra-low distortion, low noise, high slew rate operational amplifier series optimized and fully specified for high performance, high fidelity applications. Combining advanced leading-edge process technology with state-of-the-art circuit design, the LME49723 audio operational amplifiers deliver superior audio signal amplification for outstanding audio performance. The LME49723 combines extremely low voltage noise density (3.6nV/√Hz) with vanishingly low THD+N (0.0002%) to easily satisfy the most demanding audio applications. To ensure that the most challenging loads are driven without compromise, the LME49723 has a high slew rate of ±20V/μs and an output current capability of ±26mA. Further, dynamic range is maximized by an output stage that drives 2kΩ loads to within 1V of either power supply voltage and to within 1.4V when driving 600Ω loads.

The LME49723's outstanding CMRR (100dB), PSRR (100dB), and VOS (0.3mV) give the amplifier excellent operational amplifier DC performance.

The LME49723 has a wide supply range of ±2.5V to ±17V. Over this supply range the LME49723’s input circuitry maintains excellent common-mode and power supply rejection, as well as maintaining its low input bias current. The LME49723 is unity gain stable.

The LME49723 is available in an 8–lead narrow body SOIC package. Demonstration boards are available for each package.

The LME49723 is part of the ultra-low distortion, low noise, high slew rate operational amplifier series optimized and fully specified for high performance, high fidelity applications. Combining advanced leading-edge process technology with state-of-the-art circuit design, the LME49723 audio operational amplifiers deliver superior audio signal amplification for outstanding audio performance. The LME49723 combines extremely low voltage noise density (3.6nV/√Hz) with vanishingly low THD+N (0.0002%) to easily satisfy the most demanding audio applications. To ensure that the most challenging loads are driven without compromise, the LME49723 has a high slew rate of ±20V/μs and an output current capability of ±26mA. Further, dynamic range is maximized by an output stage that drives 2kΩ loads to within 1V of either power supply voltage and to within 1.4V when driving 600Ω loads.

The LME49723's outstanding CMRR (100dB), PSRR (100dB), and VOS (0.3mV) give the amplifier excellent operational amplifier DC performance.

The LME49723 has a wide supply range of ±2.5V to ±17V. Over this supply range the LME49723’s input circuitry maintains excellent common-mode and power supply rejection, as well as maintaining its low input bias current. The LME49723 is unity gain stable.

The LME49723 is available in an 8–lead narrow body SOIC package. Demonstration boards are available for each package.
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Documentación técnica

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Tipo Título Fecha
* Data sheet LME49723 Dual High Fidelity Audio Operational Amplifier datasheet (Rev. B) 04 abr 2013
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 mar 2017

Diseño y desarrollo

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Modelo de simulación

LME49723 TINA-TI Reference Design

SNAM155.TSC (3619 KB) - TINA-TI Reference Design
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Modelo de simulación

LME49723 TINA-TI Spice Model

SNAM156.ZIP (6 KB) - TINA-TI Spice Model
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Herramienta de cálculo

ANALOG-ENGINEER-CALC — Calculadora para ingenieros analógicos

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
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PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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TINA-TI — Programa de simulación analógica basado en SPICE

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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Soporte y capacitación

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