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A1122 - Chopper-Stabilized Precision Hall-Effect Switches

Download the A1122 datasheet PDF. This datasheet also covers the A1121 variant, as both devices belong to the same chopper-stabilized precision hall-effect switches family and are provided as variant models within a single manufacturer datasheet.

General Description

The A1120, A1121, A1122, A1123, and A1125 Hall-effect unipolar switches are extremely temperature-stable and stress-resistant sensor ICs, especially suited for operation over extended temperature ranges to 150°C.

Key Features

  • AEC-Q100 automotive qualified.
  • Unipolar switch points.
  • Resistant to physical stress.
  • Superior temperature stability.
  • Output short-circuit protection.
  • Operation from unregulated supply.
  • Reverse-battery protection.
  • Solid-state reliability.
  • Small package sizes.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (A1121_Allegro.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
A1122 Silicon PNP Epitaxial Transistor Renesas
A1122-1 VTR RF Modulator Sony
A1123 Silicon PNP Transistor Panasonic Semiconductor
A1123-HBL High Air Flow SUNON
A1123-HBT High Air Flow SUNON

Other Datasheets by Allegro MicroSystems

Part Number Description
A1120 Chopper-Stabilized Precision Hall-Effect Switches
A1121 Chopper-Stabilized Precision Hall-Effect Switches
A1123 Chopper-Stabilized Precision Hall-Effect Switches
A1125 Chopper-Stabilized Precision Hall-Effect Switches
A1126 Chopper-Stabilized Omnipolar Hall-Effect Switch

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
A1120, A1121, A1122, A1123, and A1125 Chopper-Stabilized Precision Hall-Effect Switches FEATURES AND BENEFITS ▪ AEC-Q100 automotive qualified ▪ Unipolar switch points ▪ Resistant to physical stress ▪ Superior temperature stability ▪ Output short-circuit protection ▪ Operation from unregulated supply ▪ Reverse-battery protection ▪ Solid-state reliability ▪ Small package sizes PACKAGES: Not to scale 3-pin SOT23W (suffix LH) NOT FOR NEW DESIGN 3-pin SIP, matrix HD style (suffix UA) 3-pin SIP, chopper style (suffix UA) DESCRIPTION The A1120, A1121, A1122, A1123, and A1125 Hall-effect unipolar switches are extremely temperature-stable and stress-resistant sensor ICs, especially suited for operation over extended temperature ranges to 150°C.