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LME49740 pdf datasheet (Quad H
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2008-09-02
王娟
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LME49740 Quad High Performance, High Fidelity Audio Operational Amplifier
General Description
The LME49740 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 LME49740 audio operational
amplifiers deliver superior audio signal amplification for
outstanding audio performance. The LME49740 combines
extremely low voltage noise density (2.7nV/√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 LME49740
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 LME49740's outstanding CMRR(120dB), PSRR(120dB),
and VOS(0.1mV) give the amplifier excellent operational amplifier
DC performance.
The LME49740 has a wide supply range of ±2.5V to ±17V.
Over this supply range the LME49740’s input circuitry maintains
excellent common-mode and power supply rejection, as
well as maintaining its low input bias current. The LME49740
is unity gain stable. The Audio Operational Amplifier achieves
outstanding AC performance while driving complex loads with
values as high as 100pF.
The LME49740 is available in 14–lead narrow body SOIC and
14–lead plastic DIP. Demonstration boards are available for
each package.
General Description
The LME49740 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 LME49740 audio operational
amplifiers deliver superior audio signal amplification for
outstanding audio performance. The LME49740 combines
extremely low voltage noise density (2.7nV/√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 LME49740
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 LME49740's outstanding CMRR(120dB), PSRR(120dB),
and VOS(0.1mV) give the amplifier excellent operational amplifier
DC performance.
The LME49740 has a wide supply range of ±2.5V to ±17V.
Over this supply range the LME49740’s input circuitry maintains
excellent common-mode and power supply rejection, as
well as maintaining its low input bias current. The LME49740
is unity gain stable. The Audio Operational Amplifier achieves
outstanding AC performance while driving complex loads with
values as high as 100pF.
The LME49740 is available in 14–lead narrow body SOIC and
14–lead plastic DIP. Demonstration boards are available for
each package.
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