New Sensor Interface IC Features Controller Programmability of Gain, Filters and Configuration

SAN JOSE, California, 2006------ Engineers at Mixed Signal Integration have developed a new integrated circuit called the MSCPSI that will interface voltage output sensors to a digital signal output. The Controller Programmable Sensor Interface chip takes small analog signals from a sensor or MEMs device and anti-aliases, filters and amplifies them. Then the signals are converted into a digital signal output. These functions are controlled by an internal PICmicro TM through the MSCPSI's on-chip serial interface.

The Controller Programmable Sensor Interface chip can be used for MEMS interface and sensors for pressure, vibration, temperature and accelerometers, among others. Medical applications such as bio-sensors are another use for the MSCPSI.

The MSCPSI has remarkable programmability for a single IC. The gain, filter characteristics and the device configuration can all be programmed via the serial interface. The MSCPSI has a low noise preamp that can be configured for differential or single-ended mode. The chip also contains a digital serial input port, 12 bit A to D converter, temperature sensor, DC offset adjustment circuit, a 4 input multiplexor for the A to D, and anti-aliasing. The on chip bias section can be selected for different power modes through the serial port. The MSCPSI takes a single supply from 3.3 V to 5.5 V DC. Typical operating current in low power mode is only 3 mA.

The MSCPSI is packaged in a 64 pin plastic LQFP. Samples are available now. Operating temperature is –40 to +85 degrees C. In 10,000 piece quantities, the MSCPSI costs $9.90 each.

MIXED SIGNAL INTEGRATION is an integrated circuit company specializing in analog and mixed signal standard products and custom ASICs in CMOS technologies. For more information, contact MSI at 2157F O'Toole Ave., San Jose, California 95131. Telephone: 408-434-6305. Fax: 408-434-6417.

PICmicroTM is a trademark of Microchip Corporation