The SNDH-T4L-G01 is a dual hall Speed and Direction Sensor that provides speed and direction information using a quadrature output with signals 90° phase shifted from each other. Target direction is determined by output lead/lag phase shifting. This product is designed for applications where extremely high resolution is required at wide frequency range of 1 to 15kHz and large air gaps. BiCMOS (bipolar complementary metal-oxide-semiconductor) hall-effect technology, using advanced digital signal processing for dynamic off-set cancellation, provides enhanced air gap performance and phase shift accuracy over most conditions.