LME49610 - 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, Fig. 2) 0.00003% (typ)
■  Slew Rate 2000V/μs (typ)
■  High Output Current 250mA (typ)
■  Bandwidth  
  BW pin floating 120MHz (typ)
  BW connected to VEE 200MHz (typ)
■  Supply Voltage Range ±2.25V ≤ VDD ≤ ±22V

General Description

The LME49610 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
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Parametric Table     expand
Parametric Table    collapse
THD 0.00003 %
PSRR 75 dB
Supply Min 4.5 Volt
Single/Dual/Quad Single
Special Features Adj BW
THD Conditions Closed loop with LME49860
THD Conditions Closed loop with LME49860
User Supply 44 Volt
Supply Max 44 Volt
THD 0.00003 %
PSRR 75 dB
Supply Min 4.5 Volt
Single/Dual/Quad Single
Special Features Adj BW
THD Conditions Closed loop with LME49860
User Supply 44 Volt
Supply Current per Amplifier 13 mA
Supply Max 44 Volt
Shut down No
Voltage Noise 3 nV/root(Hz)
Supply Range +/-2.5 to +/-22V
Max Input Bias Current 5 nA
Output Current 250 mA
Offset Voltage, typ 17 mV
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

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  Block Diagram
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Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LME49610  High Performance, High Fidelity, High Current Audio Buffer 437 Kbytes 9-Apr-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
LME49610TSTO-2635NOPB3245RoHS N/A Full productionN/A
Samples1K+$5.25rail
of
45		NSUZXYTTE#
LME49610
TS
6 weeksN/A

General Description

The LME49610 is a high performance, low distortion high fidelity 250mA audio buffer. The LME49610 is designed for a wide range of applications. When used inside the feedback loop of an op amp, it increases output current, improves capacitive load drive, and eliminates thermal feedback.

The LME49610 offers a pin-selectable bandwidth: a low current, 120MHz bandwidth mode that consumes 13mA and a wide 200MHz bandwidth mode that consumes 19mA. In both modes the LME49610 has a nominal 2000V/μs slew rate. Bandwidth is easily adjusted by either leaving the BW pin unconnected, connecting it to the VEE pin or connecting a resistor between the BW pin and the VEE pin.

The LME49610 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)
LME49610TSVIP 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 7-Jan-2009]