FXMA108BQX

FXMA108BQX is a Hall-effect magnetic sensor IC from ON Semiconductor designed for non-contact position sensing. It’s a compact digital Hall switch that detects a magnetic field and provides a logic output when the field crosses a threshold. Depending on the specific version, it can be configured as a latched or unlatched switch, making it suitable for proximity sensing, end-stop detection, rotor/gear position sensing, and other motion sensing applications without physical contact. It typically operates over a broad supply voltage with low quiescent current for battery-powered use. The “QX” suffix relates to packaging/ordering options (e.g., tape-and-reel). For exact electrical specs, pinout, and packaging details, consult the FXMA108BQX datasheet.

FXMA108BQX is an 8-pin device (SOIC-8). It functions as an ESD protection diode array for multiple I/O lines (diodes to ground to clamp ESD transients).

- Manufacturer: ROHM Semiconductor (ROHM Co., Ltd.)
- What kind of company: A Japanese multinational semiconductor and electronic components maker that designs and manufactures semiconductors, discrete devices (transistors, diodes, power MOSFETs), and integrated circuits for automotive, consumer, and industrial applications.

FXMA108BQX is used in a variety of analog front-end roles, including:
- Sensor signal conditioning (bridges, Hall sensors, thermocouples, RTDs)
- Instrumentation/Transimpedance amplifier front-ends (photodiodes, sensors)
- Audio preamplification and active-filter stages
- Medical and industrial instrumentation front-ends
- Automotive sensor interfaces and control systems
- Data acquisition and measurement equipment
Note: Uses focus on low-noise, high-performance signal amplification and conditioning.