SLOS481B July 2010 – October 2014 LM833
The LM833 device is a dual operational amplifier with high-performance specifications for use in quality audio and data-signal applications. This device operates over a wide range of single- and dual-supply voltage with low noise, high-gain bandwidth, and high slew rate. Additional features include low total harmonic distortion, excellent phase and gain margins, large output voltage swing with no deadband crossover distortions, and symmetrical sink/source performance. The dual amplifiers are utilized widely in circuit of audio optimized for all preamp and high-level stages in PCM and HiFi systems. The LM833 device is pin-for-pin compatible with industry-standard dual operation amplifiers' pin assignments. With addition of a preamplifier, the gain of the power stage can be greatly reduced to improve performance.
The LM833 operational amplifier is fully specified and ensured for operation from ±5 V to ±18 V. In addition, many specifications apply from –40°C to 85°C. Parameters that vary significantly with operating voltages or temperature are shown in Absolute Maximum Ratings.
Gain bandwidth product is found by multiplying the measured bandwidth of an amplifier by the gain at which that bandwidth was measured. The LM833 has a high gain bandwidth of 16 MHz which stays relatively stable over a wide range of supply voltages. Parameters that vary significantly with temperature are shown in Figure 14.
Harmonic distortions to an audio signal are created by electronic components in a circuit. Total harmonic distortion (THD) is a measure of harmonic distortions accumulated by a signal in an audio system. The LM833 has a very low THD of 0.002% meaning that the LM833 will add little harmonic distortion when used in audio signal applications. More specific characteristics are shown in Figure 22.
The LM833 is powered on when the supply is connected. It can be operated as a single supply operational amplifier or dual supply amplifier depending on the application.