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

Technical data sheets
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
Discontinued product
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