Product details


Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 4.5 Total supply voltage (Max) (+5V=5, +/-5V=10) 36 GBW (Typ) (MHz) 180 Slew rate (Typ) (V/us) 2000 Rail-to-rail No Vos (offset voltage @ 25 C) (Max) (mV) 60 Iq per channel (Typ) (mA) 14 Vn at 1 kHz (Typ) (nV/rtHz) 3 Features THD + N @ 1 kHz (Typ) (%) 0.00003 Rating Catalog Operating temperature range (C) -40 to 85 Output current (Typ) (mA) 250 Architecture Voltage FB CMRR (Typ) (dB) 0 Input bias current (Max) (pA) 5000000 open-in-new Find other Audio op amps

Package | Pins | Size

TO-263 (KTT) 5 155 mm² 10.16 x 15.24 open-in-new Find other Audio op amps


  • Pin-Selectable Bandwidth and Quiescent Current
  • Pure Fidelity, Pure Performance
  • Short Circuit Protection
  • Thermal Shutdown
  • TO–263 Surface-Mount Package

Key Specifications

  • Low THD+N (VOUT = 3VRMS, f = 1kHz, ): 0.00003% (typ)
  • Slew Rate: 2000V/μs (typ)
  • High Output Current: 250mA (typ)
  • Bandwidth
    •  BW Pin Floating: 110MHz (typ)
    •  BW Connected to VEE: 180MHz (typ)
  • Supply Voltage Range: ±2.25V ≤ VS ≤ ±18V

All trademarks are the property of their respective owners.

open-in-new Find other Audio op amps


The LME49600 is a high performance, low distortion high fidelity 250mA audio buffer. The LME49600 is designed for a wide range of applications. It can be used inside the feedback loop of op amps.

The LME49600 offers a pin-selectable bandwidth: a low current, 110MHz bandwidth mode that consumes 7.3mA and a wide 180MHz bandwidth mode that consumes 13.2mA. In both modes the LME49600 has a nominal 2000V/μs slew rate. Bandwidth is easily adjusted by either leaving the BW pin unconnected or connecting a resistor between the BW pin and the VEE pin.

The LME49600 is fully protected through internal current limit and thermal shutdown.

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Technical documentation

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Type Title Date
* Data sheet LME49600 High Performance, High Fidelity, High Current Audio Buffer datasheet (Rev. E) Apr. 04, 2013
Technical article 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 article Amp up your cans: Is your op amp stable? (Part 2) Jan. 22, 2016
Technical article Stress-induced outbursts: Microphonics in ceramic capacitors (Part 2) Dec. 23, 2014
Technical article 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

Design & development

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

Hardware development

document-generic User guide


The LME49600 is a high performance, low distortion high fidelity 250mA audio buffer. Whereas there are many uses for the LME49600, this application report describes a headphone amplifier circuit and associated demonstration board. Designed for use inside an operational amplifier’s feedback (...)

  • RCA jacks, 1/8” stereo headphone jack and 0.100” headers for power supply voltage and the audio input signals
  • stereo headphone jack and auxiliary output connections for Audio Output

Design tools & simulation

SNAM138.TSC (15 KB) - TINA-TI Reference Design
SNAM139.ZIP (6 KB) - TINA-TI Spice Model
SNAM140A.ZIP (20 KB) - PSpice Model
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 (...)
  • 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
  • (...)
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
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 (...)
  • 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
  • (...)

CAD/CAE symbols

Package Pins Download
DDPAK/TO-263 (KTT) 5 View options

Ordering & quality

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  • Device marking
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  • MSL rating/Peak reflow
  • MTBF/FIT estimates
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  • Qualification summary
  • Ongoing reliability monitoring

Support & training

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