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LME49723

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2-channel, 17-MHz, high-fidelity, high-performance audio op amp

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Data sheet

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OPA1662 ACTIVE Dual SoundPlus™ low noise (3.3nV/rtHz) and distortion (-124dB), wide bandwidth (22MHz) audio op amp Improved noise, distortion and PSRR

LME49723

ACTIVE
Data sheet Order now

Product details

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

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