A3212ELHLT-T Allegro Microsystems, Omnipolar Hall Effect Sensor Switch, 3-Pin SOT-23

Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
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

Specifications
Attribute Value
Magnetic Type Omnipolar
Mounting Type Surface Mount
Pin Count 3
Minimum Magnetic Sensor Release Point 10 Gs
Maximum Magnetic Sensor Operating Point 55 Gs
Minimum Operating Supply Voltage 2.5 V
Maximum Operating Supply Voltage 3.5 V
Length 2.98mm
Width 1.91mm
Height 0.95mm
Dimensions 2.98 x 1.91 x 0.95mm
Minimum Operating Temperature -40 °C
Maximum Operating Temperature +85 °C
Package Type SOT-23
Typical Magnetic Sensor Hysteresis 5.9 Gs
Temporarily out of stock - back order for despatch 23/03/2021, delivery within 4 working days from despatch date
Price Each (On a Reel of 3000)
MYR 3.374
units
Per unit
Per Reel*
3000 +
MYR3.374
MYR10,122.00
*price indicative
Related Products
A range of Hall-effect magnetic sensors from Silicon ...
Description:
A range of Hall-effect magnetic sensors from Silicon Labs. The devices combine chopper-stabilized Hall elements, low-noise amplifiers, 13-bit ADCs and comparators to produce high precision magnetically activated switches. The device output changes state if the pre-programmed magnetic threshold is crossed, ...
The Si7210 family of Hall-effect magnetic sensors from ...
Description:
The Si7210 family of Hall-effect magnetic sensors from Silicon Labs features an I2C interface which enables full configurability of the sensor operate and release points and allows measurement of the magnetic field strength. The Si7210 sensor integrates a chopper-stabilized Hall ...
A range of Hall-effect magnetic sensors from Silicon ...
Description:
A range of Hall-effect magnetic sensors from Silicon Labs featuring chopper-stabilized Hall elements, low-noise amplifiers and 13-bit ADCs which provide a linear outputs proportional to magnetic field strength. The Si721x series are available with analogue, PWM or SENT (Single Edge ...
A range of Hall-effect magnetic sensors from Silicon ...
Description:
A range of Hall-effect magnetic sensors from Silicon Labs featuring chopper-stabilized Hall elements, low-noise amplifiers and 13-bit ADCs which provide a linear outputs proportional to magnetic field strength. The Si721x series are available with analogue, PWM or SENT (Single Edge ...