Si7210 Hall Effect Magnetic Sensor

Si7210 sensors allow you to control and configure the device and read the magnetic field data over I2C on demand. With configurable digital output that allows the host to be interrupted when specified events happen, Si7210 sensors are ideal replacements for switch/latch and linear output magnetic sensors.

Current consumption
As low as 400 nA @ 5 Hz
Max magnetic field
200 mT

Si7210 Magnetic Sensor Common Specs

  • Ultra-low power: 100 nA sleep power; 400 nA for 5 samples/second
  • Configure device, access data, and wake/sleep available over I2C
  • High linearity: 0.1%
  • Low noise: < 30 µT RMS
  • Built-in 1 °C accurate temp sensor
  • Built-in coil to generate test magnetic field
  • Unipolar/Omnipolar Switch and Latch outputs available
  • 1.71 - 5.5 V supply range
  • Available in 0 to 70 °C and -40 to +125 °C variants
  • Available in industry standard SOT23 and ultra-thin .37 mm DFN8 packages
Find the Right Si7210 Device Select Columns
Select Columns
Part Number Description Package Type idd (typ) (µA) I²C Address Bop (max) Brp (min) |Bop-Brp| (typ) Full Scale Field Strength (mT) Sample Rate (Hz) Tamper Threshold (mT) Temp. Accuracy typ (°C) Temperature Range (ºC)
Push-pull output SOT23-5 0.4 0x30 1.1 0.2 0.4 20 5 19.84 ±1.0 -40 125
Open drain output SOT23-5 0.4 0x30 1.1 0.2 0.4 20 5 19.84 ±1.0 -40 125
Push-pull output SOT23-5 0.4 0x31 1.1 0.2 0.4 20 5 19.84 ±4.0 -40 125
Push-pull output SOT23-5 0.4 0x32 1.1 0.2 0.4 20 5 0 ±4.0 -40 125
Push-pull output SOT23-5 0.4 0x33 1.1 0.2 0.4 20 5 0 ±4.0 -40 125
Push-pull output DFN8 0.4 0x30 7 4 1 20 5 19.84 ±4.0 -40 125
Open drain output DFN8 0.4 0x30 7 4 1 20 5 19.84 ±4.0 -40 125
Push-pull output DFN8 0.4 0x31 7 4 1 20 5 0 ±4.0 -40 125
Push-pull output DFN8 0.4 0x32 7 4 1 20 5 0 ±4.0 -40 125
Push-pull output DFN8 0.4 0x33 7 4 1 20 5 0 ±4.0 -40 125
Push-pull output DFN8 0.4 0x33 7 4 1 20 5 0 ±4.0 -40 125

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