LME49600 - High Performance, High Fidelity, High Current Audio Buffer

Datasheet Packaging Samples & Pricing Reliability Knowledge Base

Features
•Pin-selectable bandwidth and quiescent current
•Pure fidelity. Pure performance
•Short circuit protection
•Thermal shutdown
•TO–263 surface-mount package

Key Specification

■  Low THD+N   (VOUT = 3VRMS, f = 1kHz, Figure 2) 0.00003% (typ)
■  Slew Rate 2000V/μs (typ)
■  High Output Current 250mA (typ)
■  Bandwidth  
  BW pin floating 110MHz (typ)
  BW connected to VEE 180MHz (typ)
■  Supply Voltage Range ±2.25V ≤ VS ≤ ±18V

General Description

The LME49600 is a high performance, low distortion high fidelity 250mA audio buffer. More...


Applications

•Headphone amplifier output drive stage
•Line drivers
•Low power audio amplifiers
•High-current operational amplifier output stage
•ATE Pin Driver Buffer
•Power supply regulator
  Typical Application
*click for larger image


Parametric Table     expand
Parametric Table    collapse
THD 0.00003 %
Supply Min 4.5 Volt
Single/Dual/Quad Single
Special Features Adj BW
THD Conditions Closed loop with LME49710
THD Conditions Closed loop with LME49710
User Supply 15 Volt
Supply Max 36 Volt
THD 0.00003 %
Supply Min 4.5 Volt
Single/Dual/Quad Single
Special Features Adj BW
THD Conditions Closed loop with LME49710
User Supply 15 Volt
Supply Current per Amplifier 14.5 mA
Supply Max 36 Volt
Shut down No
Voltage Noise 2.6 nV/root(Hz)
Supply Range +/-2.25V to +/-18V
Max Input Bias Current 5000 nA
Output Current 250 mA
Gain Bandwidth 180 MHz
Slew Rate 2000 Volts/usec
Mono/Stereo Mono
Temperature Min -40 deg C
Temperature Max 85 deg C
Channels 1 Channels
Input OutputType Not Rail to Rail
Offset Voltage max, 25C 60 mV
Automotive Selection Guide Yes
View Using Catalog


Typical Performance

*click for larger image


  Block Diagram
click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LME49600  High Performance, High Fidelity, High Current Audio Buffer 433 Kbytes 31-Mar-08 View Online
Download

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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
LME49600TSTO-2635NOPB3245RoHS N/A Full productionN/A
Samples
Buy Now 		1K+$4.50rail
of
45		NSUZXYTTE#
LME49600
TS
6 weeksN/A

General Description

The LME49600 is a high performance, low distortion high fidelity 250mA audio buffer. The LME49600 is designed for a wide range of applications. It can be used inside the feedback loop of op amps.

The LME49600 offers a pin-selectable bandwidth: a low current, 110MHz bandwidth mode that consumes 7.3mA and a wide 180MHz bandwidth mode that consumes 13.2mA. In both modes the LME49600 has a nominal 2000V/μs slew rate. Bandwidth is easily adjusted by either leaving the BW pin unconnected or connecting a resistor between the BW pin and the VEE pin.

The LME49600 is fully protected through internal current limit and thermal shutdown.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM * LTA Rejects LTA Device Hours FITS MTTF (Hours)
LME49600TSVIP 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.


Application Notes

TitleSize in Kbytes Date Click link below to Download
AN-1768: Application Note 1768 LME49600 Headphone Amplifier Evaluation Board User's Guide 533 Kbytes 29-Feb-08 Download

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[Information as of 6-Oct-2008]