High-Accuracy Analog Speed Sensor IC with Dual Zero-Crossing Output

A1425

A1425 package photo

The A1425 is a true zero-crossing speed sensor IC, offering high accuracy and excellent repeatability for crankshaft applications. Its dual-comparator design and integrated filter capacitor ensure robust performance and simplified implementation.

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Top Features

Packaging

  • Senses motion of ring magnet or ferrous targets
  • Integrated filter capacitor
  • Wide operating temperature range
  • Operation with magnetic input signal frequency from 20 Hz to 20 kHz
  • Resistant to EMI
  • Large effective air gaps
  • 4.0 to 26.5 V supply operating range
  • Output compatible with both TTL and CMOS logic families
  • Reverse battery protection
  • Resistant to mechanical and thermal stress
  • Accurate true zero crossing switchpoint

The device is packaged in a 4-pin plastic SIP. It is lead (Pb) free, with 100% matte tin plated leadframe.

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