Allegro Microsystems Surface Hall Effect Sensor 2.5 V 3.5 V, SOT-23, 3-Pin
Technical Document
Specifications
Brand
Allegro MicrosystemsProduct Type
Hall Effect Sensor
Sensor Type
Hall Effect Sensors
Technology
CMOS, Chopper Stabilised
Mount Type
Surface
Magnetic Type
Omnipolar
Maximum Frequency Response
340kHz
Minimum Supply Voltage
2.5V
Package Type
SOT-23
Maximum Supply Voltage
3.5V
Minimum Operating Temperature
-40°C
Pin Count
3
Maximum Operating Temperature
85°C
Width
1.91 mm
Series
A3211A3212
Height
0.95mm
Length
2.98mm
Standards/Approvals
AEC-Q100
Supply Current
2mA
Response Time
45μs
Automotive Standard
AEC-Q100
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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Stock information temporarily unavailable.
P.O.A.
Each (Supplied on a Reel) (Exc. Vat)
Production pack (Reel)
5
P.O.A.
Each (Supplied on a Reel) (Exc. Vat)
Stock information temporarily unavailable.
Production pack (Reel)
5
Ideate. Create. Collaborate
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Technical Document
Specifications
Brand
Allegro MicrosystemsProduct Type
Hall Effect Sensor
Sensor Type
Hall Effect Sensors
Technology
CMOS, Chopper Stabilised
Mount Type
Surface
Magnetic Type
Omnipolar
Maximum Frequency Response
340kHz
Minimum Supply Voltage
2.5V
Package Type
SOT-23
Maximum Supply Voltage
3.5V
Minimum Operating Temperature
-40°C
Pin Count
3
Maximum Operating Temperature
85°C
Width
1.91 mm
Series
A3211A3212
Height
0.95mm
Length
2.98mm
Standards/Approvals
AEC-Q100
Supply Current
2mA
Response Time
45μs
Automotive Standard
AEC-Q100
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