The Allegro BiCMOS process is used to design accurate amplifiers and medium density digital circuitry for factory programming of the gain and offset over temperature. Both the Hall element and the amplifier are chopper-stabilized for enhanced accuracy and offset drift performance. The analog output response times of less than 4µs allows sensing of higher frequency switching inverters. In applications that work at lower frequencies the output can be further filtered to lower the noise on the output and improve the resolution. The output resolution of Allegro Hall current sensor ICs has been revolutionized by these improved amplifier and filtering technologies. Allegro has developed proprietary chopper stabilization and filtering techniques that result in the industry leading, low-noise performance of the Hall IC output signal, as shown in the next slide.