General Description
The MAX9924–MAX9927 variable reluctance (VR or magnetic coil) sensor interface devices are ideal for position and speed sensing for automotive crankshafts, camshafts, transmission shafts, etc. These devices integrate a precision amplifier and comparator with selectable adaptive peak threshold and zero-crossing circuit blocks that generate robust output pulses even in the presence of substantial system noise or extremely weak VR signals.

FEATUREs
● Differential Input Stage Provides Enhanced Noise Immunity
● Precision Amplifier and Comparator Allows Small-Signal Detection
● User-Enabled Internal Adaptive Peak Threshold or Flexible External Threshold
● Zero-Crossing Detection Provides Accurate Phase Information

APPLICATIONs
● Camshaft VRS Interfaces
● Crankshaft VRS Interfaces
● Vehicle Speed VRS Interfaces