A1230

A1230 Ultra-Sensitive Dual-Channel Quadrature Hall-Effect Bipolar Switch FEATURES AND BENEFITS AEC-Q100 automotive qualified Two matched Hall-effect switches on a single substrate 1 mm Hall element spacing Superior temperature stability and industry-leading jitter performance through use of advanced chopperstabilization topology Integrated regulator provides 3.3 V operation Integrated ESD protection from outputs and VCC to ground High-sensitivity switch points Robust structure for EMC protection Solid-state reliability Reverse-battery protection on supply and both output pins PACKAGES: 8-Pin SOIC (suffix L) 4-Pin SIP (suffix K) Not to scale DESCRIPTION The A1230 is a dual-channel, bipolar switch with two Halleffect sensing elements, each providing a separate digital output for speed and direction signal processing capability. The Hall elements are photolithographically aligned to better than 1 µm. Maintaining accurate mechanical location between the two active Hall elements eliminates the major manufacturing hurdle encountered in fine-pitch detection applications. The A1230 is a highly sensitive, temperature-stable magnetic sensing device ideal for use in ring magnet based, speed and direction systems located in harsh automotive and industrial environments. The A1230 monolithic integrated circuit (IC) contains two independent Hall-effect bipolar switches located 1 mm apart. The digital outputs are out of phase so that the outputs are in quadrature wh...