Startseite Verstärker Operationsverstärker (OpAmps) Audio-Operationsverstärker
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Operationsverstärker (OpAmps)
Audio-Operationsverstärker

LME49724

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50-MHz-Hochleistungs-Audio-Operationsverstärker mit voller Differenzierung und hoher Wiedergabetr

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Gleiche Funktionalität, gleiche Pinbelegung wie verglichener Baustein
NEU OPA1633 AKTIV Extrem verzerrungsarmer, voll differenzieller 195-MHz-Audioverstärker Wider-bandwidth (BW) (200 MHz), lower-noise (1.1 nV/rtHz) and lower-distortion (132 db) upgrade

LME49724

AKTIV
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Produktdetails

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 GBW (typ) (MHz) 50 Slew rate (typ) (V/µs) 18 Rail-to-rail No Vos (offset voltage at 25°C) (max) (mV) 1 Iq per channel (typ) (mA) 10 Vn at 1 kHz (typ) (nV√Hz) 2.1 Features Shutdown THD + N at 1 kHz (typ) (%) 0.00003 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.08 Architecture Voltage FB CMRR (typ) (dB) 102 Input bias current (max) (pA) 200000
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 GBW (typ) (MHz) 50 Slew rate (typ) (V/µs) 18 Rail-to-rail No Vos (offset voltage at 25°C) (max) (mV) 1 Iq per channel (typ) (mA) 10 Vn at 1 kHz (typ) (nV√Hz) 2.1 Features Shutdown THD + N at 1 kHz (typ) (%) 0.00003 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.08 Architecture Voltage FB CMRR (typ) (dB) 102 Input bias current (max) (pA) 200000
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • Drives 600Ω Loads with Full Output Signal Swing
  • Optimized for Superior Audio Signal Fidelity
  • Output Short Circuit Protection
  • PSRR and CMRR Exceed 100dB (typ)
  • Available in SO PowerPad Package

All trademarks are the property of their respective owners.

  • Drives 600Ω Loads with Full Output Signal Swing
  • Optimized for Superior Audio Signal Fidelity
  • Output Short Circuit Protection
  • PSRR and CMRR Exceed 100dB (typ)
  • Available in SO PowerPad Package

All trademarks are the property of their respective owners.

The LME49724 is an ultra-low distortion, low noise, high slew rate fully-differential 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 LME49724 fully-differential audio operational amplifier delivers superior audio signal amplification for outstanding audio performance. The LME49724 combines extremely low voltage noise density (2.1nV/√Hz) with vanishingly low THD+N (0.00003%) to easily satisfy the most demanding audio applications. To ensure that the most challenging loads are driven without compromise, the LME49724 has a high slew rate of ±18V/μs and an output current capability of ±80mA. Further, dynamic range is maximized by an output stage that drives 600Ω loads to 52VP-P while operating on a ±15V supply voltage.

The LME49724's outstanding CMRR (102dB), PSRR (125dB), and VOS (0.2mV) results in excellent operational amplifier DC performance.

The LME49724 has a wide supply range of ±2.5V to ±18V. Over this supply range the LME49724’s input circuitry maintains excellent common-mode and power supply rejection, as well as maintaining its low input bias current. The LME49724 is unity gain stable. This Fully-Differential Audio Operational Amplifier achieves outstanding AC performance while driving complex loads with capacitive values as high as 100pF.

The LME49724 is an ultra-low distortion, low noise, high slew rate fully-differential 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 LME49724 fully-differential audio operational amplifier delivers superior audio signal amplification for outstanding audio performance. The LME49724 combines extremely low voltage noise density (2.1nV/√Hz) with vanishingly low THD+N (0.00003%) to easily satisfy the most demanding audio applications. To ensure that the most challenging loads are driven without compromise, the LME49724 has a high slew rate of ±18V/μs and an output current capability of ±80mA. Further, dynamic range is maximized by an output stage that drives 600Ω loads to 52VP-P while operating on a ±15V supply voltage.

The LME49724's outstanding CMRR (102dB), PSRR (125dB), and VOS (0.2mV) results in excellent operational amplifier DC performance.

The LME49724 has a wide supply range of ±2.5V to ±18V. Over this supply range the LME49724’s input circuitry maintains excellent common-mode and power supply rejection, as well as maintaining its low input bias current. The LME49724 is unity gain stable. This Fully-Differential Audio Operational Amplifier achieves outstanding AC performance while driving complex loads with capacitive values as high as 100pF.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet High Performance, High Fidelity, Fully-Differential Audio Operational Amplifier datasheet (Rev. A) 04 Apr 2013
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 Apr 2024
Application note Optimizing Noise and Power with Super Beta-Fully Differential Amplifiers PDF | HTML 07 Dez 2020
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mär 2017

Design und Entwicklung

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Simulationsmodell

LME49724 TINA-TI Reference Design

SNAM092.TSC (277 KB) - TINA-TI Reference Design
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LME49724 TINA-TI Spice Model

SNAM093.ZIP (23 KB) - TINA-TI Spice Model
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Simulationsmodell

LME49724 Unencrypted PSpice Model Package (Rev. A)

SNAM091A.ZIP (113 KB) - PSpice Model
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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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