Chopper vs bipolar op amps—an unbiased comparison
George Erdi
Abstract
A comparison of the performance of chopper versus bipolar operational amplifiers is presented.
Keywords
Operational amplifier
chopper amp
bipolar amp
Over the last few years dozens of new CMOS chopper stabilized and precision bipolar op amps have been introduced. Despite the fact that these two groups compete for the same market, a valid scientific comparison of the merits of choppers and precision bipolar is unavailable. The probable explanation is that most analog IC companies have introduced products in one group or the other but not both. Therefore, articles and news releases have extolled the benefits of one, while knocking the other. Linear Technology ...
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