A1233

A1233 2 - Dual-Channel Hall-Effect Direction Detection Sensor IC FEATURES AND BENEFITS ▪ AEC-Q100 automotive qualified ▪ Quality Managed (QM), ISO 26262 compliant ▪ Precisely aligned dual Hall elements ▪ Tightly matched magnetic switchpoints ▪ Speed and direction outputs ▪ Individual Hall element outputs (L package) ▪ Output short-circuit protection ▪ Operation from an unregulated power supply ▪ Wide operating temperature range ▪ Wide operating voltage range ▪ Integrated EMC-ESD protection ▪ Superior temperature stability and industry-leading jitter performance through use of advanced chopper stabilization topology PACKAGES 8-pin SOIC (suffix L) 4-pin SIP (suffix K) Not to scale DESCRIPTION The A1233 is a dual-channel Hall-effect sensor IC ideal for use in speed and direction sensing applications incorporating encoder ring-magnet targets. The A1233 provides various output signals that indicate speed and direction of target rotation. The Hall elements are both photolithographically aligned to better than 1 μm. Maintaining accurate displacement between the two active Hall elements eliminates the major manufacturing hurdle encountered in fine-pitch detection applications. The A1233 is a highly sensitive, temperature-stable magnetic device ideal for use in harsh automotive and industrial environments. The Hall elements of the A1233 are spaced 1.63 mm apart, which provides excellent speed and direction information for small-geometry targets. Extremely low-drift amplifiers ...