The SC9314 is a sophisticated IC featuring an on-chip 10-bit A/D Converter and logic that act as a digital sample and hold circuit. A separate 4-bit D/A converter provides a fixed hysteresis. The SC9314 does not have a chopper delay and uses a single Hall plate which is immune to rotary alignment problems. The bias magnet can be from 100mT to 400mT. As the signal is sampled, the logic recognizes an increasing or decreasing flux density.
The output will turn off (BRP) after the flux has reached its peak and then decreased by an amount equal to the hysteresis. Similarly, the output will turn on (BOP) after the flux has reached its minimum value and then increased by an amount equal to the hysteresis.
The device is available in a 3-pin SIP package and is lead (Pb) free, with 100% matte tin lead frame plating.