LME49740 - Quad High Performance, High Fidelity Audio Operational Amplifier from the PowerWise® Family

Datasheet Packaging Samples & Pricing Eval. Boards Reliability Models Knowledge Base

Features
•Easily drives 600Ω loads
•Optimized for superior audio signal fidelity
•Output short circuit protection
•PSRR and CMRR exceed 120dB (typ)
•SOIC and DIP packages

Key Specification

■  Power Supply Voltage Range ±2.5V to ±17V
■  THD+N (AV = 1, VOUT = 3VRMS,    fIN = 1kHz)  
 RL = 2kΩ 0.00003% (typ)
 RL = 600Ω 0.00003% (typ)
■  Input Noise Density 2.7nV/ √ ^Hz (typ)
■  Slew Rate ±20V/μs (typ)
■  Gain Bandwidth Product 55MHz (typ)
■  Open Loop Gain (RL = 600Ω) 140dB (typ)
■  Input Bias Current 10nA (typ)
■  Input Offset Voltage 0.1mV (typ)
■  DC Gain Linearity Error 0.000009%

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. More...


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
  Typical Application
click for larger image


Parametric Table     expand
Parametric Table    collapse
THD 0.00003 %
PSRR 120 dB
Supply Min 5 Volt
Single/Dual/Quad Quad
Special Features Ultra Low Distortion, Very Low Noise
THD Conditions Av=1; Vout=3Vrms; Load=600ohm and 2k
THD Conditions Av=1; Vout=3Vrms; Load=600ohm and 2k
PSRR Conditions delta(Vs)=20V
PSRR Conditions delta(Vs)=20V
Supply Max 34 Volt
THD 0.00003 %
PSRR 120 dB
Supply Min 5 Volt
Single/Dual/Quad Quad
Special Features Ultra Low Distortion, Very Low Noise
THD Conditions Av=1; Vout=3Vrms; Load=600ohm and 2k
PSRR Conditions delta(Vs)=20V
Supply Current per Amplifier 4.62 mA
Supply Max 34 Volt
Shut down No
Voltage Noise 2.5 nV/root(Hz)
Max Input Bias Current 72 nA
Output Current 30 mA
Offset Voltage, typ 0.1 mV
Gain Bandwidth 55 MHz
Slew Rate 20 Volts/usec
CMRR 120 dB
CMRR Conditions Vcm from -10V to +10V
Temperature Min -40 deg C
Temperature Max 85 deg C
Channels 4 Channels
Input OutputType Not Rail to Rail
Offset Voltage max, 25C 0.7 mV
Automotive Selection Guide Yes
PowerWise Yes
View Using Catalog


Typical Performance

*click for larger image


  Also Recommended
LM4562Dual High Performance High Fidelity Audio Op Amp
LME49710Single High Performance High Fidelity Audio Op Amp

Connection Diagram

click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LME49740 Quad High Performance, High Fidelity Audio Operational Amplifier 463 Kbytes 8-Feb-08 View Online
Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.


Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
Format
TypePinsSpec.MSL
Rating		Peak
Reflow		RoHS
Report		CAD
Symbols		WeeksQtyQty$US each
LME49740MABDQuad High Performance, High Fidelity Audio Operational Amplifier (8-pin, SOIC Package)Full productionLME49860.zip
 
Buy Now 		1+$150.001-
N/AN/A
LME49740NABDQuad High Performance, High Fidelity Audio Operational AmplifierFull productionLME49860.zip
 
Buy Now 		1+$200.001-
N/AN/A
LME49740MASOIC NARROW14NOPB1260RoHS N/A Full productionLME49860.zip
Samples
Buy Now 		100+$4.00rail
of
55		NSUZXYTT
LME49740
MA
16 weeks100
LME49740MAXSOIC NARROW14NOPB1260RoHS N/A Full productionLME49860.zip
 
Buy Now 		100+$4.00reel
of
2500		NSUZXYTT
LME49740
MA
16 weeks3000
LME49740NAMDIP14NOPB1NARoHS N/A Full productionLME49860.zip
Samples
Buy Now 		100+$4.00rail
of
25		NSUZXYYTTE#
LME49740NA
16 weeks50

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.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM * LTA Rejects LTA Device Hours FITS MTTF (Hours)
LME49740MAVIP III013100009875004280205821
LME49740MAXVIP III013100009875004280205821
LME49740NAVIP III013100009875004280205821

Note: The Early Failure Rates were calculated as point estimates. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


[Information as of 10-Oct-2008]