LME49830 - Mono High Fidelity 200 Volt MOSFET Power Amplifier Input Stage with Mute

Datasheet Packaging Samples & Pricing Reliability Application Notes Knowledge Base

Features
•High output current and voltage for use with MOSFET output stages
•Very high voltage range: ±20V - ±100V
•Scalable output power
•Minimum external components
•External compensation
•Thermal shutdown of input stage
•Mute control

Key Specification

■  Wide operating Voltage range ±20V to ±100V
■  Output Voltage Noise   (BW = 30kHz) 44μV (typ)
■  PSRR (DC) 105dB (typ)
■  Slew Rate 39V/μs (typ)
■  THD+N (f = 1kHz) 0.0006% (typ)

General Description

The LME49830 is a high fidelity audio power amplifier input stage designed for demanding consumer and pro-audio applications. Amplifier output power may be scaled by changing the supply voltage and number of output devices. More...


Applications

•AV receivers
•Audiophile power amps
•Pro Audio
•High voltage industrial applications
  Typical Application
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Parametric Table     expand
Parametric Table    collapse
THD 0.0006 %
PSRR 105 dB
Single/Dual/Quad Single
THD Conditions No Load, f = 1kHz, AV = 30dB,VOUT = 14VRMS, 22kHz BW
THD Conditions No Load, f = 1kHz, AV = 30dB,VOUT = 14VRMS, 22kHz BW
PSRR Conditions f=100Hz, VRIPPLE =1VRMS, Input referred, AV = 30dB
PSRR Conditions f=100Hz, VRIPPLE =1VRMS, Input referred, AV = 30dB
User Supply 100 Volt
THD 0.0006 %
PSRR 105 dB
Single/Dual/Quad Single
THD Conditions No Load, f = 1kHz, AV = 30dB,VOUT = 14VRMS, 22kHz BW
PSRR Conditions f=100Hz, VRIPPLE =1VRMS, Input referred, AV = 30dB
User Supply 100 Volt
Supply Current per Amplifier 36 mA
Supply Range +/-20V to +/-100V
Max Input Bias Current 45 nA
Output Current 60 mA
Offset Voltage, typ 2.1 mV
Slew Rate 34 Volts/usec
CMRR 94 dB
Mono/Stereo Mono
Temperature Min -20 deg C
Temperature Max 75 deg C
Channels 1 Channels
Input OutputType Not Rail to Rail
Offset Voltage max, 25C 35 mV
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Typical Performance

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  Additional Resources
Application Notes (see below)


Block Diagram

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Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to View Online Click link below to Download Click link below to Receive via Email
LME49830 Mono High Fidelity 200 Volt MOSFET Power Amplifier Input Stage with Mute 516 Kbytes 24-Jan-08 View Online Download Receive via Email

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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
LME49830TBTO-247 SINGLE GAUGE15NOPB1NARoHS N/A Full productionN/A
Samples
Buy Now 		1K+$3.33rail
of
24		NSUZXYTT
LME49830
TB
6 weeks50

General Description

The LME49830 is a high fidelity audio power amplifier input stage designed for demanding consumer and pro-audio applications. Amplifier output power may be scaled by changing the supply voltage and number of output devices. The LME49830 is capable of driving an output stage in excess of 300 W single-ended into an 8Ω load in the presence of 10% high line headroom and 20% supply regulation.

The LME49830 includes internal thermal shut down circuitry that activates when the LME49830 die temperature exceeds 150°C. The LME49830 has a mute function that mutes the input drive signal and forces the amplifier output to a quiescent state.

The LME49830 has high drive current, 56mA typical, and high output voltage swing for maximum flexibility in output stage choice. With a bias voltage range up to 16V the LME49830 can be used to drive MOSFET output stages using a wide selection of MOSFETs.

The LME49830 has a wide operating supply range of ±20V to ±100V, which allows lower cost, unregulated power supplies to be used.

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LME49830TBVIP III H/HU202366005675547161044997

For more information on Reliability Metrics, please click here.


Application Notes

TitleSize in Kbytes Date Click link below to View Online Click link below to Download Click link below to Receive via Email
AN-1850: Application Note 1850 LME49830TB Ultra-High Fidelity High Power Amplifier Reference Design 817 Kbytes 1-Jul-08 View Online Download Receive via Email
AN-1849: Application Note 1849 An Audio Amplifier Power Supply Design 1495 Kbytes 3-Jun-08 View Online Download Receive via Email

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[Information as of 6-Sep-2008]