Allegro Microsystems Surface Mount Hall Effect Sensor Switch, SOT-23, 3-Pin
Technical documents
Specifications
Brand
Allegro MicrosystemsSensor Type
Hall Effect Sensors
Mounting Type
Surface Mount
Magnetic Type
Omnipolar
Maximum Operating Supply Voltage
3.5 V
Minimum Operating Supply Voltage
2.5 V
Package Type
SOT-23
Height
0.95mm
Dimensions
2.98 x 1.91 x 0.95mm
Minimum Operating Temperature
-40 °C
Pin Count
3
Maximum Operating Temperature
+85 °C
Typical Magnetic Sensor Hysteresis
5.9 Gs
Product details
A3211/2 Micropower, Ultra Sensitive Hall Effect Switches, Allegro Microsystems
The A3211/2 are ultrasensitive, pole independent, Hall-effect switches with latched digital output. Their 2.5 V to 3.5 V operation and unique clocking scheme reduces the average operating power to less than 15 μW with a 2.75 V supply.
Either a north or south pole turns on the output in the A3212 and removing the magnetic field turns the output is off. This is reversed on the A3211.
Chopper stabilisation improves stability which reduces the residual offset voltage normally caused by device overmolding, temperature dependencies, and thermal stress.
Included on the chip is a Hall-voltage generator, small-signal amplifier, chopper stabilisation, a latch, and a MOSFET output.
Hall Effect Sensors, Allegro MicroSystems
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P.O.A.
5
P.O.A.
5
Buy in bulk
| quantity | Unit price |
|---|---|
| 5 - 20 | P.O.A. |
| 25 - 95 | P.O.A. |
| 100 - 245 | P.O.A. |
| 250 - 495 | P.O.A. |
| 500+ | P.O.A. |
Technical documents
Specifications
Brand
Allegro MicrosystemsSensor Type
Hall Effect Sensors
Mounting Type
Surface Mount
Magnetic Type
Omnipolar
Maximum Operating Supply Voltage
3.5 V
Minimum Operating Supply Voltage
2.5 V
Package Type
SOT-23
Height
0.95mm
Dimensions
2.98 x 1.91 x 0.95mm
Minimum Operating Temperature
-40 °C
Pin Count
3
Maximum Operating Temperature
+85 °C
Typical Magnetic Sensor Hysteresis
5.9 Gs
Product details
A3211/2 Micropower, Ultra Sensitive Hall Effect Switches, Allegro Microsystems
The A3211/2 are ultrasensitive, pole independent, Hall-effect switches with latched digital output. Their 2.5 V to 3.5 V operation and unique clocking scheme reduces the average operating power to less than 15 μW with a 2.75 V supply.
Either a north or south pole turns on the output in the A3212 and removing the magnetic field turns the output is off. This is reversed on the A3211.
Chopper stabilisation improves stability which reduces the residual offset voltage normally caused by device overmolding, temperature dependencies, and thermal stress.
Included on the chip is a Hall-voltage generator, small-signal amplifier, chopper stabilisation, a latch, and a MOSFET output.