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A3291 Datasheet Precision Hall-Effect Latches

Manufacturer: Allegro MicroSystems

Download the A3291 datasheet PDF. This datasheet also includes the A3290 variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (A3290-Allegro.pdf) that lists specifications for multiple related part numbers.

General Description

The A3290 and A3291 Hall-effect latches are extremely temperature-stable and stress-resistant sensor ICs, especially suited for operation over extended temperature ranges (up to 125°C).

Superior high-temperature performance is made possible through dynamic offset cancellation, which reduces the residual offset voltage normally caused by device package overmolding, temperature dependencies, and thermal stress.

The two devices are identical except for their magnetic switchpoints.

Overview

A3290 and A3291 Chopper-Stabilized, Precision Hall-Effect Latches for Consumer and Industrial.

Key Features

  • Symmetrical switchpoints.
  • Resistant to physical stress.
  • Superior temperature stability.
  • Output short-circuit protection.
  • Operation from unregulated supply.
  • Reverse battery protection.
  • Solid-state reliability.
  • Small package size.

More Datasheets from Allegro MicroSystems

Part Number Description
A3290 Precision Hall-Effect Latches
A3295 Precision Hall Effect Switch
A3210 ULTRA-SENSITIVE HALL-EFFECT SWITCHES
A3213 Micropower Ultra-Sensitive Hall-Effect Switches
A3214 Micropower Ultra-Sensitive Hall-Effect Switches
A3241 Chopper-Stabilized Unipolar Hall-Effect Switches
A3242 Chopper-Stabilized Unipolar Hall-Effect Switches
A3280 Precision Hall-Ef fect Latches
A3281 Precision Hall-Ef fect Latches
A3283 Precision Hall-Ef fect Latches