LME49600

LME49600 High Performance, High Fidelity, High Current Audio Buffer www.DataSheet4U.com March 31, 2008 LME49600  High Performance, High Fidelity, High Current Audio Buffer 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. Key Specifications ■ Low THD+N (VOUT = 3VRMS, f = 1kHz, Figure 2) 0.00003% (typ) 2000V/μs (typ) 250mA (typ) ■ Slew Rate ■ High Output Current ■ Bandwidth BW pin floating BW connected to VEE 110MHz (typ) 180MHz (typ) ±2.25V ≤ VS ≤ ±18V ■ Supply Voltage Range Features ■ ■ ■ ■ ■ Pin-selectable bandwidth and quiescent current Pure fidelity. Pure performance Short circuit protection Thermal shutdown TO–263 surface-mount package 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 Functional Block Diagram 30029805 FIGUR...