Hi-fi headphone amp
limits distortion
One of four audio amplifiers with single-ended stereo output, the TPA152
generates less than 0.2% THD+N across the audio band while driving stereo
headphones. For 10-kilohm loads at 1 kHz, THD+N drops to 0.005%. Output
is 75 mW per channel into 32 ohm.
The TPA102/112/122 deliver 150 mW of stereo output and offer a 10-µA
shutdown mode (TPA102/122) and a standard op amp pinout (TPA112). Other
features include a midrail generator that biases the reference voltage,
a mute function, and depop circuitry. The amplifiers are available in 8-pin
MSOPs and SOPs. (TPA152, $0.77 ea/1,000; TPA102/112/122, $0.15 to $0.65
ea/1,000–available now.)
Texas Instruments
Dallas, TX
Semiconductor Group (SC-98071) 800-477-8924, ext. 4500
http://www.ti.com/sc/amplifiers
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