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Operational Amplifier. LME49740 Datasheet

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Operational Amplifier. LME49740 Datasheet






LME49740 Amplifier. Datasheet pdf. Equivalent




LME49740 Amplifier. Datasheet pdf. Equivalent





Part

LME49740

Description

High Fidelity Audio Operational Amplifier



Feature


LME49740 Quad High Performance, High Fid elity Audio Operational Amplifier www. DataSheet4U.com February 2007 LME4974 0 Quad High Performance, High Fidelity Audio Operational Amplifier General Des cription The LME49740 is part of the ul tra-low distortion, low noise, high sle w rate operational amplifier series opt imized and fully specified for high per formance, high fid.
Manufacture

National Semiconductor

Datasheet
Download LME49740 Datasheet


National Semiconductor LME49740

LME49740; elity applications. Combining advanced l eading-edge process technology with sta te-of-the-art circuit design, the LME49 740 audio operational amplifiers delive r superior audio signal amplification f or outstanding audio performance. The L ME49740 combines extremely low voltage noise density (2.7nV/√HZ) with vanish ingly low THD+N (0.00003%) to easily sa tisfy the most deman.


National Semiconductor LME49740

ding audio applications. To ensure that the most challenging loads are driven w ithout compromise, the LME49740 has a h igh slew rate of ±20V/μs and an outpu t current capability of ±26mA. Further , dynamic range is maximized by an outp ut stage that drives 2kΩ loads to wit hin 1V of either power supply voltage a nd to within 1.4V when driving 600Ω l oads. The LME49740's outs.


National Semiconductor LME49740

tanding CMRR(120dB), PSRR(120dB), and VO S(0.1mV) give the amplifier excellent o perational amplifier DC performance. Th e LME49740 has a wide supply range of 2.5V to ±17V. Over this supply range the LME49740’s input circuitry mainta ins excellent common-mode and power sup ply rejection, as well as maintaining i ts low input bias current. The LME49740 is unity gain stable..

Part

LME49740

Description

High Fidelity Audio Operational Amplifier



Feature


LME49740 Quad High Performance, High Fid elity Audio Operational Amplifier www. DataSheet4U.com February 2007 LME4974 0 Quad High Performance, High Fidelity Audio Operational Amplifier General Des cription The LME49740 is part of the ul tra-low distortion, low noise, high sle w rate operational amplifier series opt imized and fully specified for high per formance, high fid.
Manufacture

National Semiconductor

Datasheet
Download LME49740 Datasheet




 LME49740
February 2007
www.DataSheet4U.com
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 opera-
tional amplifiers deliver superior audio signal amplification for
outstanding audio performance. The LME49740 combines
extremely low voltage noise density (2.7nV/HZ) with van-
ishingly 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 LME49740
has a high slew rate of ±20V/μs and an output current capa-
bility of ±26mA. Further, dynamic range is maximized by an
output stage that drives 2kloads to within 1V of either power
supply voltage and to within 1.4V when driving 600loads.
The LME49740's outstanding CMRR(120dB), PSRR(120dB),
and VOS(0.1mV) give the amplifier excellent operational am-
plifier DC performance.
The LME49740 has a wide supply range of ±2.5V to ±17V.
Over this supply range the LME49740’s input circuitry main-
tains 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.
Key Specifications
■ Power Supply Voltage Range
■ THD+N (AV = 1, VOUT = 3VRMS,
  fIN = 1kHz)
RL = 2k
RL = 600Ω
■ Input Noise Density
■ Slew Rate
■ Gain Bandwidth Product
■ Open Loop Gain (RL = 600Ω)
■ Input Bias Current
■ Input Offset Voltage
■ DC Gain Linearity Error
±2.5V to ±17V
0.00003% (typ)
0.00003% (typ)
2.7nV/Hz (typ)
±20V/μs (typ)
55MHz (typ)
140dB (typ)
10nA (typ)
0.1mV (typ)
0.000009%
Features
Easily drives 600loads
Optimized for superior audio signal fidelity
Output short circuit protection
PSRR and CMRR exceed 120dB (typ)
SOIC and DIP packages
Applications
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
© 2007 National Semiconductor Corporation 202105
www.national.com




 LME49740
Typical Application
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FIGURE 1. Passively Equalized RIAA Phono Preamplifier
Connection Diagram
20210502
Order Number LME49740MA
See NS Package Number — M14A
Order Number LME49740NA
See NS Package Number — N14A
20210501
www.national.com
2




 LME49740
Absolute Maximum Ratings (Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Power Supply Voltage
(VS = V+ - V-)
Storage Temperature
Input Voltage
Output Short Circuit (Note 3)
Power Dissipation
36V
−65°C to 150°C
(V-)-0.7V to (V+)+0.7V
Continuous
Internally Limited
ESD Susceptibility (Note 4)
ESD Susceptibility (Note 5)
Junction Temperature
Thermal Resistance
 θJA (MA)
 θJA (NA)
Temperature Range
TMIN TA TMAX
Supply Voltage Range
2000V
www.DataShe2e0t04VU.com
150°C
107°C/W
74°C/W
–40°C TA 85°C
±2.5V VS ± 17V
Electrical Characteristics (Notes 1, 2) The following specifications apply for VS = ±15V, RL = 2k, fIN = 1kHz,
and TA = 25C, unless otherwise specified.
Symbol
Parameter
Conditions
LME49740
Typical
Limit
(Note 6) (Notes 7, 8)
Units
(Limits)
THD+N
IMD
Total Harmonic Distortion + Noise
Intermodulation Distortion
AV = 1, VOUT = 3VRMS
RL = 2k
RL = 600Ω
AV = 1, VOUT = 3VRMS
Two-tone, 60Hz & 7kHz 4:1
0.00003
0.00003
0.00005
0.00009
% (max)
% (max)
% (max)
GBWP
Gain Bandwidth Product
55 45 MHz (min)
SR Slew Rate
±20 ±15 V/μs (min)
FPBW
Full Power Bandwidth
VOUT = 1VP-P, –3dB
referenced to output magnitude
at f = 1kHz
10
MHz
ts Settling time
AV = 1, 10V step, CL = 100pF
0.1% error range
1.2
μs
Equivalent Input Noise Voltage
fBW = 20Hz to 20kHz
en
Equivalent Input Noise Density
f = 1kHz
f = 10Hz
0.34
0.65
μVRMS
2.7 4.7 nV/Hz
6.4 nV/Hz
in Current Noise Density
f = 1kHz
f = 10Hz
1.6 pA/Hz
3.1 pA/Hz
VOS Offset Voltage
ΔVOSTemp
Average Input Offset Voltage Drift vs
Temperature
40°C TA 85°C
±0.1
±0.7
mV (max)
0.2 μV/°C
PSRR
Average Input Offset Voltage Shift vs
Power Supply Voltage
ΔVS = 20V (Note 9)
120 110 dB (min)
ISOCH-CH
Channel-to-Channel Isolation
IB
ΔIOSTemp
Input Bias Current
Input Bias Current Drift vs
Temperature
fIN = 1kHz
fIN = 20kHz
VCM = 0V
–40°C TA 85°C
118 dB
112 dB
10 72 nA (max)
0.1 nA/°C
IOS
VIN-CM
Input Offset Current
VCM = 0V
Common-Mode Input Voltage Range
11
+14.1
–13.9
65
(V+)–2.0
(V-)+2.0
nA (max)
V (min)
V (min)
CMRR
ZIN
AVOL
Common-Mode Rejection
Differential Input Impedance
Common Mode Input Impedance
Open Loop Voltage Gain
–10V<VCM<10V
–10V<VCM<10V
–10V<VOUT<10V, RL = 600Ω
–10V<VOUT<10V, RL = 2k
–10V<VOUT<10V, RL = 10k
120
30
1000
140
140
140
110 dB (min)
k
M
dB (min)
dB (min)
125 dB (min)
3 www.national.com






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