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LM4562_07 Datasheet

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  • National Semiconductor [Dual High Performance, High Fidelit...

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LM4562 Dual High Performance, High Fidelity Audio Operational Amplifier
May 2007
LM4562
Dual High Performance, High Fidelity Audio Operational
Amplifier
General Description
The LM4562 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 LM4562 audio operational
amplifiers deliver superior audio signal amplification for out-
standing audio performance. The LM4562 combines ex-
tremely low voltage noise density (2.7nV/
鈭?/div>
Hz) with vanish-
ingly low THD+N (0.00003%) to easily satisfy the most
demanding audio applications. To ensure that the most chal-
lenging loads are driven without compromise, the LM4562
has a high slew rate of 卤20V/渭s and an output current capa-
bility of 卤26mA. Further, dynamic range is maximized by an
output stage that drives 2k鈩?loads to within 1V of either power
supply voltage and to within 1.4V when driving 600鈩?loads.
The LM4562's outstanding CMRR (120dB), PSRR (120dB),
and V
OS
(0.1mV) give the amplifier excellent operational am-
plifier DC performance.
The LM4562 has a wide supply range of 卤2.5V to 卤17V. Over
this supply range the LM4562鈥檚 input circuitry maintains ex-
cellent common-mode and power supply rejection, as well as
maintaining its low input bias current. The LM4562 is unity
gain stable. This Audio Operational Amplifier achieves out-
standing AC performance while driving complex loads with
values as high as 100pF.
The LM4562 is available in 8鈥搇ead narrow body SOIC, 8鈥搇ead
Plastic DIP, and 8鈥搇ead Metal Can TO-99. Demonstration
boards are available for each package.
R
L
= 2k鈩?/div>
R
L
= 600鈩?/div>
0.00003% (typ)
0.00003% (typ)
2.7nV/
鈭?/div>
Hz (typ)
卤20V/渭s (typ)
55MHz (typ)
140dB (typ)
10nA (typ)
0.1mV (typ)
0.000009%
鈻犫€?/div>
Input Noise Density
鈻犫€?/div>
Slew Rate
鈻犫€?/div>
Gain Bandwidth Product
鈻犫€?/div>
Open Loop Gain (R
L
= 600鈩?
鈻犫€?/div>
Input Bias Current
鈻犫€?/div>
Input Offset Voltage
鈻犫€?/div>
DC Gain Linearity Error
Features
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
Easily drives 600鈩?loads
Optimized for superior audio signal fidelity
Output short circuit protection
PSRR and CMRR exceed 120dB (typ)
SOIC, DIP, TO-99 metal can packages
Applications
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
Ultra high quality 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
Key Specifications
鈻犫€?/div>
Power Supply Voltage Range
鈻犫€?/div>
THD+N (A
V
= 1, V
OUT
= 3V
RMS
, f
IN
= 1kHz)
卤2.5V to 卤17V
Typical Application
201572k5
Passively Equalized RIAA Phono Preamplifier
漏 2007 National Semiconductor Corporation
201572
www.national.com

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