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LME49720

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Dual High Performance, High Fidelity Audio Operational Amplifier

Data sheet
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Dual High Performance, High Fidelity Audio Operational Amplifier

LME49720

ACTIVE
Data sheet Order now

Product details

Parameters

Number of channels (#) 2 Total supply voltage (Min) (+5V=5, +/-5V=10) 5 Total supply voltage (Max) (+5V=5, +/-5V=10) 34 GBW (Typ) (MHz) 55 Slew rate (Typ) (V/us) 20 Rail-to-rail No Vos (offset voltage @ 25 C) (Max) (mV) 0.7 Iq per channel (Typ) (mA) 5 Vn at 1 kHz (Typ) (nV/rtHz) 2.5 Features — THD + N @ 1 kHz (Typ) (%) 0.00003 Rating Catalog Operating temperature range (C) -40 to 85 Output current (Typ) (mA) 26 Architecture Voltage FB CMRR (Typ) (dB) 120 Input bias current (Max) (pA) 72000 open-in-new Find other Audio op amps

Package | Pins | Size

PDIP (P) 8 93 mm² 9.81 x 9.43 SOIC (D) 8 19 mm² 4.9 x 3.9 open-in-new Find other Audio op amps

Features

  • Easily Drives 600Ω Loads
  • Optimized for Superior Audio Signal Fidelity
  • Output Short Circuit Protection
  • PSRR and CMRR Exceed 120dB (typ)
  • SOIC, PDIP, TO-99 Metal Can Packages
  • Key Specifications
    • Power Supply Voltage Range: ±2.5 to ±17V
    • THD+N (AV = 1, VOUT = 3VRMS, fIN = 1kHz):
      • RL = 2kΩ: 0.00003% (typ)
      • RL = 600Ω: 0.00003% (typ)
    • Input Noise Density: 2.7nV/√Hz (typ)
    • Slew Rate: ±20V/µs (typ)
    • Gain Bandwidth Product: 55MHz (typ)
    • Open Loop Gain (RL = 600Ω;): 140dB (typ)
    • Input Bias Current: 10nA (typ)
    • Input Offset Voltage: 0.1mV (typ)
    • DC Gain Linearity Error: 0.000009%
 open-in-new Find other Audio op amps

Description

The LME49720 device 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 LME49720 audio operational amplifiers deliver superior audio signal amplification for outstanding audio performance. The LME49720 combines extremely low voltage noise density (2.7nV/√Hz) with vanishingly low THD+N (0.00003%) to easily satisfy the most demanding audio applications.

 open-in-new Find other Audio op amps
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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 8
Type Title Date
* Datasheet LME49720 Dual High Performance, High Fidelity Audio Operational Amplifier datasheet (Rev. D) Dec. 01, 2016
Technical articles No headroom, no problem: buffering and filtering an audio signal chain in low-voltage systems Apr. 11, 2019
E-book The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Technical articles Amp up your cans: Is your op amp stable? (Part 2) Jan. 22, 2016
Technical articles Stress-induced outbursts: Microphonics in ceramic capacitors (Part 2) Dec. 23, 2014
Technical articles Stress-induced outbursts: Microphonics in ceramic capacitors (Part 1) Dec. 19, 2014
User guide LME49600 Headphone Amplifier Evaluation Board User's Guide (Rev. A) May 03, 2013
Application note Effect of Heavy Loads on Accuracy and Linearity of Op Amp Circuits (Rev. B) Apr. 22, 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
149
Description

The LME49720 is a Dual High Fidelity Audio Operational Amplifier. This Audio Amplifier offers near zero THD+N and sets a new standard for high end audio users. TI's newest Amplifier uses state of the art circuitry and process to achieve a new class of audio performance and technology. The AC and DC (...)

Features
  • Dual Audio Operational Amplifier
  • Ultra low THD+N of 0.00003%
  • 34V operation and low noise
  • 600Ohm loads
  • SNR 97dB
  • High output of 26mA
  • Gain Bandwidth Product >55MHz
  • 20uV/S Slew rate
  • DC Gain Linearity Error of 0.000009%
  • PSRR >120dB
  • CMRR >120dB
  • Vos is 0.1mV
  • Three package offerings (SOIC, DIP, and Metal Can)

(...)

View details
EVALUATION BOARD Download
document-generic User guide
149
Description

The LME49720 is a Dual High Fidelity Audio Operational Amplifier. This Audio Amplifier offers near zero THD+N and sets a new standard for high end audio users. TI's newest Amplifier uses state of the art circuitry and process to achieve a new class of audio performance and technology. The AC and DC (...)

Features
  • Dual Audio Operational Amplifier
  • Ultra low THD+N of 0.00003%
  • 34V operation and low noise
  • 600Ohm loads
  • SNR 97dB
  • High output of 26mA
  • Gain Bandwidth Product >55MHz
  • 20uV/S Slew rate
  • DC Gain Linearity Error of 0.000009%
  • PSRR >120dB
  • CMRR >120dB
  • Vos is 0.1mV
  • Three package offerings (SOIC, DIP, and Metal Can)

(...)

View details
EVALUATION BOARD Download
document-generic User guide
49
Description

The LME49720 is a Dual High Fidelity Audio Operational Amplifier. This Audio Amplifier offers near zero THD+N and sets a new standard for high end audio users. TI's newest Amplifier uses state of the art circuitry and process to achieve a new class of audio performance and technology. The AC and DC (...)

Features
  • Dual Audio Operational Amplifier
  • Ultra low THD+N of 0.00003%
  • 34V operation and low noise
  • 600Ohm loads
  • SNR 97dB
  • High output of 26mA
  • Gain Bandwidth Product >55MHz
  • 20uV/S Slew rate
  • DC Gain Linearity Error of 0.000009%
  • PSRR >120dB
  • CMRR >120dB
  • Vos is 0.1mV
  • Three package offerings (SOIC, DIP, and Metal Can)

(...)

View details

Design tools & simulation

SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
View details
SIMULATION TOOL Download
SPICE-based analog simulation program
TINA-TI — 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 (...)
document-generic User guide
CALCULATION TOOL Download
Analog engineer's calculator
ANALOG-ENGINEER-CALC — 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 op-amp gain with feedback (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)
View details

CAD/CAE symbols

Package Pins Download
PDIP (P) 8 View options
SOIC (D) 8 View options

Ordering & quality

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  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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