Updated: 15 Jan 2001
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Updated: 15 Jan 2001
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INTRODUCTION.
The LM833 is a dual amplifier by National, designed "with particular emphasis on performance in audio systems" it says in the datasheet.
The bipolar input stage gives low voltage noise, though not quite as good as the 5532. The load-driving capability is not so good, a 1K load causing significant distortion.
SPECS.
Here are the vital statistics:
All typical values, for +/-15V supply rails.
| Supply voltage | +/-18V abs max |
| Output range | +/-13.4V typ (2K load) |
| CM range | +/-14V ) |
| en | 4.5 nV/rtHz typ 1 kHz |
| in | 0.7 pA/rtHz typ |
| Ibias | 500 nA typ |
| Slew rate: | 7 V/us |
| Unity gain stable | YES |
| Supply current | 5 mA |
| Cost | 56p RS Jan 2001 |
| LM833 driving various loads at 7.75 Vrms. |
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