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LME49721

ACTIVO

Amplificador operacional de audio RRIO de 2 canales, 20 MHz, alta fidelidad y alto rendimiento

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Detalles del producto

Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 GBW (typ) (MHz) 20 Slew rate (typ) (V/µs) 8.5 Rail-to-rail In, Out Vos (offset voltage at 25°C) (max) (mV) 1.5 Iq per channel (typ) (mA) 2.15 Vn at 1 kHz (typ) (nV√Hz) 4 Features Premium Sound THD + N at 1 kHz (typ) (%) 0.0002 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.1 Architecture Voltage FB CMRR (typ) (dB) 93 Input bias current (max) (pA) 1
Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 GBW (typ) (MHz) 20 Slew rate (typ) (V/µs) 8.5 Rail-to-rail In, Out Vos (offset voltage at 25°C) (max) (mV) 1.5 Iq per channel (typ) (mA) 2.15 Vn at 1 kHz (typ) (nV√Hz) 4 Features Premium Sound THD + N at 1 kHz (typ) (%) 0.0002 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.1 Architecture Voltage FB CMRR (typ) (dB) 93 Input bias current (max) (pA) 1
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Rail-to-Rail Input and Output
  • Easily Drives 10kΩ Loads to Within 10mV of Each Power Supply Voltage
  • Optimized for Superior Audio Signal Fidelity
  • Output Short Circuit Protection

Key Specifications

  • Power Supply Voltage Range: 2.2V to 5.5V
  • Quiescent Current: 2.15mA (typ)
  • THD+N (AV = 2, VOUT = 4Vp-p, f IN = 1kHz)
    • RL = 2kΩ: 0.00008% (typ)
    • RL = 600Ω: 0.0001% (typ)
  • Input Noise Density: 4nV/√Hz (typ), @ 1kHz
  • Slew Rate: ±8.5V/μs (typ)
  • Gain Bandwidth Product: 20MHz (typ)
  • Open Loop Gain (RL = 600Ω): 118dB (typ)
  • Input Bias Current: 40fA (typ)
  • Input Offset Voltage: 0.3mV (typ)
  • PSRR: 103dB (typ)

All trademarks are the property of their respective owners.

  • Rail-to-Rail Input and Output
  • Easily Drives 10kΩ Loads to Within 10mV of Each Power Supply Voltage
  • Optimized for Superior Audio Signal Fidelity
  • Output Short Circuit Protection

Key Specifications

  • Power Supply Voltage Range: 2.2V to 5.5V
  • Quiescent Current: 2.15mA (typ)
  • THD+N (AV = 2, VOUT = 4Vp-p, f IN = 1kHz)
    • RL = 2kΩ: 0.00008% (typ)
    • RL = 600Ω: 0.0001% (typ)
  • Input Noise Density: 4nV/√Hz (typ), @ 1kHz
  • Slew Rate: ±8.5V/μs (typ)
  • Gain Bandwidth Product: 20MHz (typ)
  • Open Loop Gain (RL = 600Ω): 118dB (typ)
  • Input Bias Current: 40fA (typ)
  • Input Offset Voltage: 0.3mV (typ)
  • PSRR: 103dB (typ)

All trademarks are the property of their respective owners.

The LME49721 is a low-distortion, low-noise Rail-to-Rail Input/Output operational amplifier optimized and fully specified for high-performance, high-fidelity applications. Combining advanced leading-edge process technology with state-of-the-art circuit design, the LME49721 Rail-to-Rail Input/Output operational amplifier delivers superior signal amplification for outstanding performance. The LME49721 combines a very high slew rate with low THD+N to easily satisfy demanding applications. To ensure that the most challenging loads are driven without compromise, the LME49721 has a high slew rate of ±8.5V/μs and an output current capability of ±9.7mA. Further, dynamic range is maximized by an output stage that drives 10kΩ loads to within 10mV of either power supply voltage.

The LME49721 has a wide supply range of 2.2V to 5.5V. Over this supply range the LME49721’s input circuitry maintains excellent common-mode and power supply rejection, as well as maintaining its low input bias current. The LME49721 is unity gain stable.

The LME49721 is a low-distortion, low-noise Rail-to-Rail Input/Output operational amplifier optimized and fully specified for high-performance, high-fidelity applications. Combining advanced leading-edge process technology with state-of-the-art circuit design, the LME49721 Rail-to-Rail Input/Output operational amplifier delivers superior signal amplification for outstanding performance. The LME49721 combines a very high slew rate with low THD+N to easily satisfy demanding applications. To ensure that the most challenging loads are driven without compromise, the LME49721 has a high slew rate of ±8.5V/μs and an output current capability of ±9.7mA. Further, dynamic range is maximized by an output stage that drives 10kΩ loads to within 10mV of either power supply voltage.

The LME49721 has a wide supply range of 2.2V to 5.5V. Over this supply range the LME49721’s input circuitry maintains excellent common-mode and power supply rejection, as well as maintaining its low input bias current. The LME49721 is unity gain stable.

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Documentación técnica

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Tipo Título Fecha
* Data sheet High Performance, High Fidelity Rail-to-Rail I/O Audio Operational Amplifier datasheet (Rev. C) 04 abr 2013
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 mar 2017
EVM User's guide AN-1767 LME49721 Evaluation Board (Rev. A) 03 may 2013

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

AMP-PDK-EVM — Módulo de evaluación del kit de desarrollo del rendimiento del amplificador

El kit de desarrollo del rendimiento (PDK) del amplificador es un kit de módulo de evaluación (EVM) para probar los parámetros comunes del amplificador operacional y es compatible con la mayoría de los amplificadores operacionales y comparadores. El kit del EVM ofrece una placa principal con varias (...)

Guía del usuario: PDF | HTML
Modelo de simulación

LME49721 PSpice Model

SNAM044.ZIP (18 KB) - PSpice Model
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 (...)
Herramienta de simulación

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 (...)
Herramienta de simulación

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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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOIC (D) 8 Ultra Librarian

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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