Allegro Microsystems Surface Mount Hall Effect Sensor Switch, SOT-23, 3-Pin
Technical Document
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
Pin Count
3
Maximum Operating Temperature
+85 °C
Minimum Operating Temperature
-40 °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
Ideate. Create. Collaborate
JOIN FOR FREE
No hidden fees!
- Download and use our DesignSpark software for your PCB and 3D Mechanical designs
- View and contribute website content and forums
- Download 3D Models, Schematics and Footprints from more than a million products
Stock information temporarily unavailable.
Please check again later.
0.385 OMR
Each (Supplied on a Reel) (ex VAT)
0.404 OMR
Each (Supplied on a Reel) (inc VAT)
Production pack (Reel)
5
0.385 OMR
Each (Supplied on a Reel) (ex VAT)
0.404 OMR
Each (Supplied on a Reel) (inc VAT)
Production pack (Reel)
5
Ideate. Create. Collaborate
JOIN FOR FREE
No hidden fees!
- Download and use our DesignSpark software for your PCB and 3D Mechanical designs
- View and contribute website content and forums
- Download 3D Models, Schematics and Footprints from more than a million products
Technical Document
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
Pin Count
3
Maximum Operating Temperature
+85 °C
Minimum Operating Temperature
-40 °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
Ideate. Create. Collaborate
JOIN FOR FREE
No hidden fees!
- Download and use our DesignSpark software for your PCB and 3D Mechanical designs
- View and contribute website content and forums
- Download 3D Models, Schematics and Footprints from more than a million products