A3503UA Hall Effect Sensor (A3503UA Linear Hall Sensor IC)
The A3503UA Hall Effect Sensor is a linear magnetic sensor designed to detect very small changes in magnetic field strength and provide an analog voltage output proportional to the applied field. It is part of the 3503 series of ratiometric Hall effect ICs, widely used for precision sensing applications.
It integrates a Hall sensing element, amplifier, and output stage on a single chip, allowing accurate measurement of magnetic flux density while minimizing noise and external circuitry requirements.
Key Features
- Linear Hall Effect Sensor analog output
- High Sensitivity detects very small magnetic changes
- Ratiometric Output proportional to supply voltage
- Low Noise Output stable signal processing
- Wide Bandwidth up to approx 23 kHz
- Compact 3 pin package easy PCB mounting
Specifications
- Sensor Type: Linear Hall effect sensor
- Output Type: Analog voltage proportional to magnetic field
- Supply Voltage: approx 4.5V to 6V
- Supply Current: approx 9mA to 14mA
- Quiescent Output Voltage: approx Vcc/2 at zero field
- Sensitivity: approx 1.3 mV per Gauss typical
- Operating Temperature: -20 to 85 degree C
- Package Type: SIP 3 pin or TO92 style
Applications
- Magnetic field measurement
- Position and displacement sensing
- Gear tooth and speed detection
- Current sensing systems
- Proximity detection using magnets
- Industrial automation and instrumentation
Pinout Configuration
- Pin 1: VCC
- Pin 2: GND
- Pin 3: Output
Working Principle
- Magnetic field applied to sensor
- Hall element generates voltage
- Internal amplifier processes signal
- Output voltage varies linearly with field strength
