Si721x Hall Effect Magnetic Sensor

The Si721x Linear output magnetic sensors bring class leading linearity and noise
performance, while maintaining pin compatibility with many existing sensors.
This allows you to reduce the size of your magnetics and improve performance
with your existing design.

AN1018: Using the Si72xx Hall Effect Sensors

Electrical, mechanical, and magnetic considerations surrounding the use of Si72xx devices.

Features

  • Ultra low power: 100nA sleep power for parts with disable feature
  • Analog, PWM, and SENT outputs available
  • High Linearity: 0.15%
  • Low noise: < 30 µT RMS
  • 1.71 V - 5.5 V and 3.3 V - 26.5 V supply range
  • Available in 0 to 70 °C and -40 to125 °C variants
  • AECQ-100 automotive qualified
  • Available in industry standard SOT23 packages

Si721x Product Matrix

Devices
Part Number Data Sheet Dev Kit Description Output Type Output Configuration idd (typ) (µA) Full Scale Field Strength (mT) Sample Rate (Hz) Temp Compensation Averaging Temperature Range (°C) BIST Disable Pin Package Type
Si72XX-WD-KIT Linear Magnetic Sensor Analog Increasing Voltage 6650 20 7000 No 16 -40 125 No No SOT23-3
Si72XX-WD-KIT Linear Magnetic Sensor 250Hz PWM Increasing Pulsewidth 560 20 300 No 16 -40 125 Yes No SOT23-3
Si72XX-WD-KIT Linear Magnetic Sensor SENT (Open Drain) Increasing 740 20 880 No 16 -40 125 No No SOT23-3
Si72XX-WD-KIT Linear Magnetic Sensor 100Hz PWM Increasing Pulsewidth 465 20 150 No 16 -40 125 Yes No SOT23-3
Si72XX-WD-KIT Linear Magnetic Sensor SENT (Open Drain) Increasing 910 20 880 No 16 -40 125 Yes Yes SOT23-3
Si72XX-WD-KIT Linear Magnetic Sensor Analog Increasing Voltage 1700 20 1000 No 16 -40 125 No No SOT23-3
Si72XX-WD-KIT Analog Increasing Voltage 6650 20 7000 No 16 -40 125 No No SOT23-5
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