Measuring an op amp’s THD(total harmonic distortion) at frequenciesbelow 100 kHz is problematicbecause modern amplifiers have a THDrating that is much lower than that ofmost test equipment. The ...

As we’ve traced our no-nonsense path through the world of Hi-Fi audio, we’ve started with the listener, understood the limitations of the human ear, and thence proceeded to the loudspeaker. We’ve ...

Setting a benchmark for performance, the LM4562 audio op amp specifies a THD+N figure of 0.00003%. The device combines a 6-MHz, unity-gain bandwidth operational amplifier with a proprietary ...

A critical measure for all audio components is distortion, typically specified as total harmonic distortion (THD) or total harmonic distortion + noise (THD+N). THD is defined as: ... THD+N is the rms ...

International Solid-State Circuits Conference in San Francisco always seems to make space for audio amplifier developments, and this year is no exception, with some extraordinary distortion and noise ...

Zetex is claiming sub-0.005 per cent THD, a dynamic range of 115dB and damping factor better than 2,000 for its 250W ‘Class Z’ digital audio amplifier, demonstrated at the Consumer Electronics Show in ...

Fundamental analog devices that serve applications such as high-resolution delta-sigma or SAR (successive-approximation-register) converter systems are feeling the crunch from amplifiers that have ...