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New Products

  Date: 08/10/2013

24-bit low power piezo resistive sensor signal interface IC

Micro Analog Systems Oy has announced MAS6503, a 24-bit Piezo Resistive Sensor Signal Interface IC primarily intended for MEMS based pressure sensor modules. The device uses a ratiometric AD-converter principle employing a delta-sigma conversion to achieve high noise performance.

Its current consumption is 18.3 micro Amperes, one pressure conversion in a second at maximum resolution and including sensor bridge current and it can operate at low supply voltage from 1.8 V to 3.6 V which makes it an ideal solution for interfacing a piezo-resistive sensor in power consumption critical portable applications.

The effective number of bits (ENOB) of the ADC is 17.4 bits. The over sampling ratio (OSR) of the Delta Sigma-converter has five values to choose from for further optimization between conversion accuracy, speed and current consumption. MAS6503 also features supply voltage monitoring mode which is especially useful in battery operated systems. The external sensor bridge can be used to sense not only pressure but also temperature, using the built-in sensor sampling switches. The MAS6503 communicates via a standard 2-wire I2C serial bus interface.

MAS6503 is available in a QFN-16 4x4x0.75 package as well as tested wafer or die in waffle pack.
For more info visit mas-oy.com



 
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