LME49724 High Performance, High Fidelity, Fully-Differential Audio Operational Amplifier | TI.com

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High Performance, High Fidelity, Fully-Differential Audio Operational Amplifier



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.


  • 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

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Part number Order Number of channels (#) Total supply voltage (Min) (+5V=5, +/-5V=10) Total supply voltage (Max) (+5V=5, +/-5V=10) GBW (Typ) (MHz) Slew rate (Typ) (V/us) Rail-to-rail Vos (offset voltage @ 25 C) (Max) (mV) Iq per channel (Typ) (mA) Vn at 1 kHz (Typ) (nV/rtHz) Features THD + N @ 1 kHz (Typ) (%) Rating Operating temperature range (C) Package Group Output current (Typ) (mA) Package size: mm2:W x L (PKG) Architecture CMRR (Typ) (dB) Input bias current (Max) (pA)
LME49724 Order now 1     5     36     50     18     No     1     10     2.1     Shutdown     0.00003     Catalog     -40 to 85     SO PowerPAD | 8     80     8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)     Voltage FB     102     200000