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Sensor interface offers six user-configurable I/O channels

Posted: 22 Mar 2007 ?? ?Print Version ?Bookmark and Share

Keywords:sensor interface? sensor? fusion-sensing? Sensor Platforms? microcontrollers?

Targeting fusion-sensing applications, Sensor Platforms Inc.'s SSP1401 multichannel LRC sensor interface chip has six user-configurable I/O channels that can drive most types of sensor elements, including resistive, capacitive, inductive and piezo-resistive.

The six user-configurable channels can each drive up to 60mA for any given sensor. The device can measure four major kinds of sensors, namely pulse count, inductive, capacitive and resistive sensors. Applications include pressure sensors, accelerometers, capacitive touch screens, MR magnetometers, microphones and thermal sensors.

According to Sensor Platforms, the SSP1401 is suitable for "deeply embedded" applications, which it describes as embedded products that are less reconfigurable than microcontrollers, but smaller and cheaper and designed to fill a specific product niche.

The SSP1401 employs a measurement technique to convert sensor values into digital results without the need for an A/D converter. The SSP1401 provides 1.8V operation (1.6V to 3.6V) and low-power consumption of The SSP1401 sensor interface operates in the extended temperature range of -40 to 125C for industrial and automotive applications.

The SSP1401 is available in a bare die form or in a 5-by-5mm, 28-pin MLF/QFN package that is RoHS compliant. Samples and evaluation kits will be available in Q2 of 2007.Packaged devices are priced at $2.24 each in 1,000-unit quantities and the evaluation kit is priced at $199 each.

- Ismini Scouras

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