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Asahi Angle Sensor, EM-3242
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Asahi’s EM-3242 non-contact magnet angular sensors detects the absolute angular position of a small magnet that is positioned above the device surface. The sensor has a full 360 degree angle range.
The sensors incorporates IMC (Integrated Magnetic Concentrator) and CMOS Hall devices to sense the magnetic field vector along with the circuitry to convert the Hall sensor signal to an analog voltage proportional to angle position of the magnet. The sensors is packaged in a very small 6 pin SOIC which is one on the smallest integrated angle sensors on the market. Only one external component is required for operation which is a 0.1µF bypass capacitor. The EM-3242 are low power sensors that that operate on 2.7 to 5.5 V and 8mA of current.
The EM-3242 will replace the EM-3241 (See Sensor Upgrade) for comparison between the two devices.
The Asahi EM-3241 and EM-3242 are RoHS compliant.
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Features
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Applications
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- Small Size 3.6 x 3.0 x 0.8 mm - 6pin SOIC
- Resolution of up to 9 bits (0.7 deg) 10 bits for the EM-3242
- Non-linearity - 1%;
- Low Power - Typically 8 mA at 3.0V
- Sleep Mode - 1µA current draw
- Linear ratio-metric analog output voltage proportional to 0-360 degree
- Single 3V supply (2.7 to 5.25 V operating)
- Only one external part required - 0.1µF Capacitor
- Very High Speed > 12K RPM
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Non-contact angle sensing
Senses magnetic field orientation of a small permanent magnet
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Last updated on
26 September, 2007
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