ATS632LSA

ATS632LSA HALL-EFFECT GEAR-TOOTH SENSOR SUBASSEMBLY ATS632LSA The ATS632LSA gear-tooth sensor is an optimized Hall-effect IC/ magnet combination that provides extremely accurate tooth edge detection when used with large-pitch targets. The sensor subassembly consists of a high-temperature plastic shell that holds together a compound samarium-cobalt magnet and a single-element self-calibrating Hall-effect IC that has been optimized to the magnetic circuit. This small package, with its non-oriented operation, can be easily assembled on a PC board for complete protection and used in conjunction with a number of gear configurations. The gear sensing technology used for this sensor subassembly is Hall-effect based. The sensor incorporates a single-element Hall IC that switches in response to absolute magnetic signals created by a ferrous target. The digital output is LOW over a tooth and HIGH over a valley. The sophisticated processing circuitry contains self-calibrating 6-bit A/D circuitry that adapts the thresholds to the peak-to-peak signals to minimize the effects of variation in application air gap on switch-point timing accuracy. The effects of system and device offsets are minimized by using active offset cancellation circuitry. The digital algorithm provides zero-speed detection capabilities without the associated running jitter inherent in classical digital solutions. This sensor system is ideal for use in gathering speed, position and profile information of ferrous objec...