IC-Haus : Angular position sensor has a serial interface

The iC-MP is a space saving system-on-chip solution for sensing an absolute angular position. In combination with a diametric magnetized permanent magnet the iC-MP represents a robust absolute and incremental encoder with 1.4° resolution. The tiny 4 mm x 4 mm QFN28 package contains the integrated Hall sensors with signal amplifier and gain control, an A/D converter to transfer the 8-bit digital data into a linear ramp plus a serial interface.
Typical applications of the iC-MP can be found in the industrial and automotive field, such as:
– Potentiometer replacement
– Manual or automatic actuators
– Position control and aquisition
– Absolute rotating angle measurement

The linear output can be programmed for the rotating direction and for angular ranges of 90°, 180°, 270° or 360°. The output swing is rail-to-rail, but can be set to 10% to 90% of the supply voltage to distinguish failure by short circuit of the output line to ground or to the supply voltage.

For data transfer and programming, a serial interface is integrated as well. The configuration settings are programmed into the on-chip nonvolatile OTP-ROM.

The automatic gain control compensates variation in the Hall signal strength caused by temperature or magnet distance changes. A magnet field below the specified value generates an error signal for diagnosis purpose.

For sensing multiple axes, multiple iC-MP devices can be cascaded. Their position data is read either via the serial interface or over the common analog line, with only one device active at a time, reducing the power consumption.

The iC-MP operates with a +5 V (±10%) supply voltage in an ambient temperature range of -40 to +125° C.

Introducing iC-Haus

iC-Haus GmbH is one of the leading independent German manufacturers of standard iCs (ASSP) and customized ASiC semiconductor solutions. The company has been active in the design, production and sales of application-specific iCs for industrial, automotive and medical technology since 1984 and is represented worldwide. The iC-Haus cell libraries in bipolar, CMOS and BCD technologies are fully equipped to realize the design of Sensor-ASiC, Laser-/Opto-ASiC and Actuator-ASiC devices.

The iCs are assembled either in standard plastic packages or using chip-on-board technology to manufacture complete microsystems, multichip modules or – in combination with sensors – optoBGAsTM.

Further information is available on the iC-Haus website at

Dr. David Lin,
iC-Haus GmbH, Am Kuemmerling 18, D–55294 Bodenheim
Tel: +49 – (0)6135 – 9292-300
Fax: +49 – (0)6135 – 9292-192

Note: The above text is the public part of the press release obtained from the manufacturer (with minor modifications). EETimes Europe cannot be held responsible for the claims and statements made by the manufacturer. The text is intended as a supplement to the new product presentations in EETimes Europe magazine.

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