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
485 In stock for delivery within 5 working day(s) (Global Stock)
Price (ex. GST) Each (In a Pack of 5)
$ 1.682
(exc. GST)
$ 1.85
(inc. GST)
units
Per unit
Per Pack*
5 - 20
$1.682
$8.41
25 - 95
$1.562
$7.81
100 - 245
$1.328
$6.64
250 - 495
$1.252
$6.26
500 +
$1.206
$6.03
*price indicative
Packaging Options:
Related Products
Hall Effect Switches & Latches, Diodes Inc A ...
Description:
Hall Effect Switches & Latches, Diodes Inc A range of sensor ICs from Diodes Inc utilizing the Hall Effect to implement non-contact switching and sensing functions. Hall Effect ICs fall into three basic categories: Linear Sensors, Switches, and Latches. Linear ...
MX887D Hall Effect Switch A Hall-effect sensor switch ...
Description:
MX887D Hall Effect Switch A Hall-effect sensor switch from IXYS suitable for low-power low-voltage applications On-chip power management circuitry reduces the effective average current to just 5uA at 3V making the device ideal for portable devices. The MX887D is an ...
A1101/2/3/4/6 Hall Effect Sensor Switch, Allegro Microsystems The ...
Description:
A1101/2/3/4/6 Hall Effect Sensor Switch, Allegro Microsystems The Allegro A1101/2/3/4 and A1106 Hall-effect switches are produced with BiCMOS technology enabling fast power-on time and low-noise operation Device programming is performed after packaging, to ensure increased switch-point accuracy by eliminating ...
Up to 50A Integrated Current Sensor ICs, Allegro ...
Description:
Up to 50A Integrated Current Sensor ICs, Allegro Micro Systems Current sensing package with flip-chip technology3000 Vrms galvanic isolation High accuracy over temperature Typical output error of 1% Current sensing package with flip-chip technology3000 Vrms galvanic isolation High accuracy over ...