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
  • Available in industry standard SOT23 and TO92 packages

Si721x Product Matrix

Status
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-EVAL-KIT Linear Output Magnetic Sensor Analog Increasing Voltage 5500 20 7000 No 16 -40 125 No No TO92
Si72xx-EVAL-KIT Linear output Hall effect magnetic sensor with analog output Analog Increasing Voltage 5500 20 7000 No 16 -40 125 No No SOT23-3
Si72xx-EVAL-KIT Linear output magnetic sensor with 250 Hz PWM output 250Hz PWM Increasing Pulsewidth 560 20 300 No 16 -40 125 Yes No SOT23-3
Si72xx-EVAL-KIT Linear output magnetic sensor with sent output SENT (Open Drain) Increasing 1020 20 1000 No 16 -40 125 No No SOT23-3
Si72xx-EVAL-KIT Linear output magnetic sensor with 100 Hz PWM output 100Hz PWM Increasing Pulsewidth 1020 20 150 No 16 -40 125 Yes No SOT23-3
Si72xx-EVAL-KIT Linear output Hall effect magnetic sensor with SENT output SENT (Open Drain) Increasing 1700 20 1000 No 16 -40 125 Yes Yes SOT23-3
Si72xx-EVAL-KIT Linear output Hall effect magnetic sensor with analog output Analog Increasing Voltage 1700 20 1000 No 16 -40 125 No No SOT23-3
Si72xx-EVAL-KIT Linear output Hall effect magnetic sensor with analog output Analog Increasing Voltage 5500 20 7000 No 16 -40 125 No Yes SOT23-5
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