LME49721   
High Performance, High Fidelity Rail-to-Rail Input/Output Audio Operational Amplifier 		Click link to Download

Features
•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

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 Specification
■  Power Supply Voltage Range 2.2V to 5.5V
■  Quiescent Current 2.15mA (typ)
■   THD+N (AV = 2, VOUT = 4Vp-p, fIN = 1kHz)  
 RL = 2kΩ 0.00008% (typ)
 RL = 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 (RL = 600Ω) 118dB (typ)
■  Input Bias Current 40fA (typ)
■  Input Offset Voltage 0.3mV (typ)
■  PSRR 103dB (typ)

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



MY BRIEFCASE                                     Remove all from My Briefcase 
Click any "Briefcase" icon to add an item

Typical Application
click for larger image



Typical Performance
click for larger image


 

ParametersValues
THD .0002 %
PSRR 103 dB
Supply Min 2.2 Volt
Single/Dual/Quad Dual
Special Features Rail to rail
THD Conditions Av=+1, Vout=2Vpp, Rl=2kohm, Rl=600ohm
User Supply 5 Volt
Supply Current per Amplifier 2.15 mA
Supply Max 5.5 Volt
Shut down No
Voltage Noise 4 nV/root(Hz)
Supply Range +2.2 - +5.5 V
Max Input Bias Current 0.00004 nA
Output Current 9.7 mA
Offset Voltage, typ 0.3 mV
Gain Bandwidth 20 MHz
Slew Rate 8.5 Volts/usec
CMRR 93 dB
CMRR Conditions Vss-100mV < Vout < Vdd+200mV
Mono/Stereo Stereo
Temperature Min -40 deg C
Temperature Max 85 deg C
Channels 2 Channels
Input OutputType R-R In and Out
Offset Voltage max, 25C 1.5 mV
Automotive Yes

Datasheet
TitleSizeDateOther
Language
LME49721 High Performance, High Fidelity Rail-to-Rail Input/Output Audio Operational Amplifier727
Kbytes		2-Oct-07 


Featured Application Notes
TitleSizeDateOther
Language
AN-1767: Application Note 1767 LME49721 Evaluation Board649
Kbytes		24-Feb-08 中文


More Application Notes
TitleSizeDateOther
Language
AN-1767: Application Note 1767 LME49721 Evaluation Board649
Kbytes		24-Feb-08 中文

Part Number(s)
(NSID)		Top ViewAvailabilityCurrent Reported StockBudgetary PricingStandard Pack Size
LME49721MA/NOPB
LME49721MA

RoHS



SOIC NARROW		Full production
Lead Time: 6 weeks

Samples
DistributorRegionQty
ARROWWorldwide5000
AVNET-EMWorldwide45
DIGIKEYWorldwide407
FUTUREWorldwide95
RS COMPONENTSWorldwide42
$1.50 each at 1K+ pcsrail
of
95
LME49721MAX/NOPB
LME49721MAX

RoHS



SOIC NARROW		Full production
Lead Time: 8 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
$1.50 each at 1K+ pcsrail
of
95

Part Number(s)
(NSID)		DescriptionAvailabilityCurrent Reported StockBudgetary PricingStandard Pack Size
LME49721MABD
LME49721MABD Evaluation BoardFull production


 
DistributorRegionQty
DIGIKEYWorldwide0
NATIONALWorldwide0
$150.00 each1

The LME49721MA 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 circuitry, the LME49721 Rail-to-Rail Input/Output operational amplifier delivers superior signal amplification for outstanding signal path performance.

This LME49721MABD is an evaluation board designed to ease the evaluation and effort during the development of a circuit using the LME49721. It is an easy to use stand-alone board that requires power and GND, an input signal and an output load.

Features:

  • True Rail to Rail Input and Output.
         Easily Drives 10K ohm loads to within 10mv of each supply rail.
  • 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

Evaluation Board Contents:

  • Fully Assembled LME49721MABD Evaluation Board
  • Instructions for where to locate and download the datasheet

Please note: application information and board layout can be found in datasheet


Part Number(s)
(NSID)		Top ViewTypePinsMSL RatingPeak ReflowRoHSCAD SymbolsModelsPackage
Marking
Format
LME49721MA/NOPB
LME49721MA
SOIC NARROW81
1		260
260		RoHSN/AN/A
NSZXTT
L49721
MA
LME49721MAX/NOPB
LME49721MAX
SOIC NARROW81
1		260
260		RoHSN/AN/A
NSZXTT
L49721
MA

Reliability Metrics
Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LME49721MACMOS70184060010890004309006723
LME49721MAXCMOS70184060010890004309006723

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. 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 21-Nov-2009]