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MAX9927 Datasheet Variable Reluctance Sensor Interfaces

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: Click here for production status of specific part numbers. MAX9924–MAX9927 Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold.

Download the MAX9927 datasheet PDF. This datasheet also includes the MAX9924 variant, as both parts are published together in a single manufacturer document.

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.

The MAX9926/MAX9927 are dual versions of the MAX9924/MAX9925, respectively.

Key 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.