High Fidelity 200 Volt Power Amplifier Input Stage with Shutdown - LME49811

LME49811 (ACTIVE)

High Fidelity 200 Volt Power Amplifier Input Stage with Shutdown

Description

The LME49811 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 LME49811 is capable of driving an output stage to deliver in excess of 500 watts single-ended into an 8 ohm load in the presence of 10% high line headroom and 20% supply regulation.

The LME49811 includes thermal shut down circuitry that activates when the die temperature exceeds 150°C. The LME49811's shutdown function when activated, forces the LME49811 into shutdown state.

Features

  • Very High Voltage Operation
  • Scalable Output Power
  • Minimum External Components
  • External Compensation
  • Thermal Shutdown

Key Specifications

  • Wide Operating Voltage Range: ±20V to ±100V
  • PSRR (f = DC): 115dB (Typ)
  • THD+N (f = 1kHz): 0.00035% (Typ)
  • Output Drive Current: 9mA

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Parametrics Compare all products in Mid/High-Power Amplifier

 
Min. Supported Single-Ended Load
Max Speaker Outputs (#)
Input Type
Control Type
Analog Supply Min [V]
Analog Supply Max [V]
Power Stage Supply Min (V)
Power Stage Supply Max (V)
Rating
Operating Temperature Range (C)
Approx. Price (US$)
LME49811
4    
1    
Analog    
Hardware    
40    
200    
40    
200    
Catalog    
-20 to 75    
2.50 | 1ku    

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