1FEATURES

2• Rail-to-Rail Output

• Easily Drives 2kΩ Loads to within 4mV of Each

Power Supply Voltage Rail

• Optimized for Superior Audio Signal Fidelity

• Output Short Circuit Protection

• High Output Drive (>300mA)

• Available in VSSOP Exposed-DAP Package

KEY SPECIFICATIONS

• Power Supply Voltage Range: 2.5 to 5.5 V to•

Quiescent Current per Amplifier at 5V: 0.7

mA (Typ)

• THD+N, AV = 1, fIN = 1kHz, RL = 10kΩ:

– (VOUT = 3.5VP-P, VDD = 5.0V): 0.00008 % (Typ)

– (V OUT = 1.5VP-P, VDD = 2.5V): 0.00002 % (Typ)

• Equivalent Input Noise (f = 10k): 8.3 nV/√Hz

(Typ)

• Slew Rate: ±3.7 V/μs (Typ)

• Gain Bandwidth Product: 6.25 MHz (Typ)

• Open Loop Gain (RL = 10kΩ): 120 dB (Typ)

• Input Bias Current: 0.2 pA (Typ)

• Input Offset Voltage: 0.5 mV (Typ)

• PSRR (DC): 104 dB (Typ)

APPLICATIONS

• Portable Audio Amplification

• Preamplifiers and Multimedia

• Equalization and Crossover Networks

• Line Drivers and Receivers

• Active Filters

• DAC I–V Converter Gain Stage

• ADC Front-End Signal Conditioning

DESCRIPTION

The LME49726 is a low distortion, low noise rail-to•

rail output audio operational amplifier optimized and

fully specified for high performance, high fidelity

applications. The LME49726 delivers superior audio

signal amplification for outstanding audio

performance. The LME49726 has a very low THD+N

to easily satisfy demanding audio applications. To

ensure that the most challenging loads are driven

without compromise, the LME49726 provides output

current greater than 300mA at 5V. Further, dynamic

range is maximized by an output that drives 2kΩ

loads to within 4mV of either power supply voltage.

The LME49726 has a supply range of 2.5V to 5.5V.

Over this supply range the LME49726’s input circuitry

maintains excellent common-mode and power supply

rejection, as well as maintaining its low input bias

current. The LME49726 is unity gain stable.