Dual Variable−Reluctance Sensor Interface IC

The NCV1124 is a monolithic integrated circuit designed primarily to condition signals from sensors used to monitor rotating parts.
The NCV1124 is a dual channel device. Each of the two identical channels interfaces with a variable−reluctance sensor, and continuously compares the sensor output signal to a user−programmable internal reference. An alternating input signal of appropriate amplitude at IN1 or IN2 will result in a rectangular waveform at the corresponding OUT terminal, suitable for interface to either standard microprocessors or standard logic families.
A diagnostic input, common to both channels, provides a means to test for degradation or loss of the physical connector to both sensors.

FEATUREs
• Two Independent Channels
• Internal Hysteresis
• Built−In Diagnostic Mode
• Designed to Work from a 5.0 V 10% Supply
• Site and Control for Automotive Applications
• Pb−Free Packages are Available

Typical Applications
• Anti−Skid Braking and Traction Control
• Vehicle Stability Control
• Drive Belt Slippage Detection
• Crankshaft/Camshaft Position Sensing