A1230LLTR-T Allegro Microsystems, Bipolar Hall Effect Sensor, 8-Pin SOIC

Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): GB
Product Details

A1230 Dual Channel Quadrature Hall Effect Bipolar Switch, Allegro Microsystems

The Allegro Microsystems A1230 is a dual-channel, bipolar switch with two Hall-effect sensing elements. Each element provides a separate digital output for speed and direction signal processing.

The Hall elements are aligned with an accuracy greater than 1 μm. This accuracy makes it ideal for use in ring magnet based, speed and direction systems located in harsh automotive and industrial environments.

The A1230 contains two independent Hall-effect bipolar switches located 1 mm apart. The digital outputs are out of phase so the outputs are in quadrature when interfaced with the proper ring magnet design. Low-drift amplifiers guarantee symmetry between the switches.

The Allegro high-frequency chopper-stabilisation cancels offsets in each channel providing stable operation over the full specified temperature and voltage ranges.

The A1230 is available in a plastic 8-pin SOIC surface mount package and a plastic 4-pin SIP.

AEC-Q100 automotive qualified
Two matched Hall-effect switches on a single substrate
1 mm Hall element spacing
Superior temperature stability and industry-leading jitter performance through use of advanced chopper stabilisation topology
Integrated LDO regulator provides 3.3 V operation
Integrated ESD protection from outputs and VCC to ground
High-sensitivity switchpoints
Robust structure for EMC protection
Reverse-battery protection on supply and both output pins

Hall Effect Sensors, Allegro MicroSystems

Attribute Value
Magnetic Type Bipolar
Mounting Type Surface Mount
Pin Count 8
Minimum Magnetic Sensor Release Point -30 Gs
Maximum Magnetic Sensor Operating Point 30 Gs
Minimum Operating Supply Voltage 3.3 V
Maximum Operating Supply Voltage 18 V
Length 4.9mm
Width 3.9mm
Height 1.47mm
Dimensions 4.9 x 3.9 x 1.47mm
Minimum Operating Temperature -40 °C
Maximum Operating Temperature +150 °C
Package Type SOIC
Typical Magnetic Sensor Hysteresis 14 Gs
Available to back order for despatch 07/04/2020
Price Each (On a Reel of 3000)
£ 1.259
(exc. VAT)
£ 1.511
(inc. VAT)
Per unit
Per Reel*
3000 +
*price indicative
Related Products
Allegro’s diverse selection of speed sensor ICs provide ...
Allegro’s diverse selection of speed sensor ICs provide optimized solutions for many non-automotive applications where speed or speed and direction information are needed. These sensor ICs can handle designs using various target geometries, materials, and sensing orientations. Allegro’s portfolio of speed sensor ICs contains solutions able to address requirements for ...
The Allegro Microsystems A1120, A1121, A1122, A1123, and ...
The Allegro Microsystems A1120, A1121, A1122, A1123, and A1125 Hall-effect, unipolar switches are temperature-stable and stress-resistant sensor ICs. High temperature performance is made possible through dynamic offset cancellation, which reduces the residual offset voltage normally caused by device over-molding, temperature dependencies, and thermal stress.They include a voltage regulator, Hall-voltage generator, ...
The Allegro Microsystems A1220, A1221, A1222, and A1223 ...
The Allegro Microsystems A1220, A1221, A1222, and A1223 Hall-effect Latches include a voltage regulator, Hall voltage generator, small-signal amplifier, chopper stabilisation and Schmitt trigger. They are also short circuit protected open-drain output to sink up to 25 mA.A south pole turns on the output and a north pole turns off ...
Allegro Current sensor ICs in CA and CB ...
Allegro Current sensor ICs in CA and CB packagesConductor resistance of 100 μΩ typical for ultra low-power lossAutomotive grade options for harsh applications environments3000 Vrms galvanic isolation.