霍尔效应集成电路、霍尔IC、开关、单极、Bipolar工艺、MT4108A、MT4108AT、MT4108BT
•These Hall-effect sensors are monolithic integrated circuits with tighter magnetic specifications, designed to operate continuously over extended temperatures to +150°C, and are more stable with both temperature and supply voltage changes.
•Each device includes a voltage regulator for operation with supply voltages of 3.8 to 30 volts, reverse battery protection diode, quadratic Hall-voltage generator, temperature compensation circuitry, smallsignal amplifier, Schmitt trigger, and an open-collector output to sink up to 50 mA. With suitable output pull up, they can be used with bipolar or CMOS logic circuits:
•Bipolar工艺：具有宽泛的工作电压以及良好的反向电压保护能力，特别适用于高噪声和高电磁干扰环境下的应用。
•单极霍尔只需一个磁极控制，磁铁接近时输出低电平，远离时输出高电平，另一极性始终高电平。此特性可与单个磁铁或者其他类似结构相互配合，产生不同应用例如接近开关、转速检测、水流传感、无接触式定位等。