LME49721MAX Datasheet, PDF (1/29 Pages) Texas Instruments – LME49721 High-Performance, High-Fidelity Rail-to-Rail Input/Output Audio Operational Amplifier

LME49721
www.ti.com
SNAS371C – SEPTEMBER 2007 – REVISED APRIL 2013
LME49721 High-Performance, High-Fidelity Rail-to-Rail Input/Output Audio Operational
Amplifier
Check for Samples: LME49721
FEATURES
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•2 Rail-to-Rail Input and Output
• Easily Drives 10kΩ Loads to Within 10mV of
Each Power Supply Voltage
• Optimized for Superior Audio Signal Fidelity
• Output Short Circuit Protection
APPLICATIONS
• Ultra High-Quality Portable Audio
Amplification
• High-Fidelity Preamplifiers
• High-Fidelity Multimedia
• State-of-the-Art 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
• DAC I–V Converter
• ADC Front-End Signal Conditioning
DESCRIPTION
The LME49721 is a low-distortion, low-noise Rail-to-
Rail Input/Output 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 LME49721 Rail-to-Rail Input/Output
operational amplifier delivers superior signal
amplification for outstanding performance. The
LME49721 combines a very high slew rate with low
THD+N to easily satisfy demanding applications. To
ensure that the most challenging loads are driven
without compromise, the LME49721 has a high slew
rate of ±8.5V/μs and an output current capability of
±9.7mA. Further, dynamic range is maximized by an
output stage that drives 10kΩ loads to within 10mV of
either power supply voltage.
The LME49721 has a wide supply range of 2.2V to
5.5V. Over this supply range the LME49721’s input
circuitry maintains excellent common-mode and
power supply rejection, as well as maintaining its low
input bias current. The LME49721 is unity gain
stable.
KEY SPECIFICATIONS
• Power Supply Voltage Range: 2.2V to 5.5V
• Quiescent Current: 2.15mA (typ)
• THD+N (A_V = 2, V_OUT = 4V_p-p, f _IN = 1kHz)
– R_L = 2kΩ: 0.00008% (typ)
– R_L = 600Ω: 0.0001% (typ)
• Input Noise Density: 4nV/√Hz (typ), @ 1kHz
• Slew Rate: ±8.5V/μs (typ)
• Gain Bandwidth Product: 20MHz (typ)
• Open Loop Gain (R_L = 600Ω): 118dB (typ)
• Input Bias Current: 40fA (typ)
• Input Offset Voltage: 0.3mV (typ)
• PSRR: 103dB (typ)
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2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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