Chopper-Stabilized Technique.
These devices use a proprietary dynamic offset cancellation technique, with an internal high-frequency clock to reduce the residual offset voltage of the Hall element that is normally caused by device overmolding, temperature dependencies, and thermal stress.
This techn
3425 DUAL, CHOPPER-STABILIZED, ULTRA-SENSITIVE, BIPOLAR HALL-EFFECT SWITCH The A3425LK dual Hall-effect switch is an extremely temperature-stable and stress-resistant sensor especially suited for use in digital-encoder systems in the harsh environments of automotive or industrial applications over extended temperature ranges to +150°C.
Superior high-temperature performance is made possible through dynamic offset cancellation, which reduces the residual offset voltage normally caused by device o
A3425 Features
* I Two Matched Hall Switches On A Single Substrate I I I I I I I I 1 mm Sensor-to-Sensor Spacing Superior Temperature Stability Resistant to Physical Stress Output Short-Circuit Protection Operation From Unregulated Supply Reverse Battery Protection Solid-State Reliability Integrated ESD Protection
Datasheet Details
A3425
Allegro MicroSystems
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Ultra-sensitive dual-channel quadrature hall-effect bipolar switch.
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