Product category:
Analogue and Mixed Signal ICs
News Release from: Allegro MicroSystems Europe | Subject: ATS635/636 Series
Edited by the Electronicstalk Editorial
Team on 30 January 2006
IC sensors show there's metal
The ATS635/636 Series of programmable back-biased Hall-effect IC sensors switch in response to magnetic signals created by ferrous targets.
New from Allegro MicroSystems Europe, the ATS635/636 Series of programmable back-biased Hall-effect IC sensors are true power-on state devices which use an optimised Hall-effect IC and magnet combination to switch in response to magnetic signals created by ferrous targets in automotive or industrial gear-tooth sensing and proximity applications These devices are externally programmable, with a wide range of programmability available on the magnetic operate point while the hysteresis remains fixed
This article was originally published on Electronicstalk on 30 Aug 2000 at 8.00am (UK)
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This advanced feature allows for optimisation of the sensor switchpoint and can drastically reduce the effects of mechanical placement tolerances in production environments.
A proprietary dynamic offset cancellation technique with an internal high-frequency clock reduces the residual offset voltage, which is normally caused by device overmoulding, temperature dependencies, and thermal stress.
Having the Hall element and amplifier in a single chip minimises many problems normally associated with low-level analogue signals.
The ATS635LSE switches "high" in the presence of a ferrous target or tooth and "low" in the presence of a target valley, window, or when the ferrous target is removed.
The ATS636LSE has the opposite polarity and switches "low" in the presence of a ferrous target or tooth and "high" in the presence of a target valley, window, or when the ferrous target is removed.
These devices, which also incorporate robust EMC, ESD and reverse battery protection, are available in lead (Pb) free versions, with 100% matt tin lead-frame plating.
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