1FEATURES

2• Easily Drives 600Ω Loads

• Optimized for Superior Audio Signal Fidelity

• Output Short Circuit Protection

• PSRR and CMRR Exceed 100dB (typ)

• SOIC Package

APPLICATIONS

• High Quality Audio Amplification

• High Fidelity Preamplifiers

• High Fidelity Multimedia

• Phono Pre Amps

• High Performance Professional Audio

• High Fidelity Equalization and Crossover

Networks

• High Performance Line Drivers

• High Performance Line Receivers

• High Fidelity Active Filters

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)

DESCRIPTION

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.