PRESS RELEASE 06 October 2011 Micro Analog Systems releases Low Power Piezoresistive Sensor Signal Interface IC Targeted for MEMS based pressure sensor modules Helsinki, Finland – 06 October 2011 - Micro Analog Systems Oy today announced MAS6502, a 16-bit Piezoresistive Sensor Signal Interface IC primarily intended for MEMS based pressure sensor modules. The device uses a ratiometric AD-converter principle employing a delta-sigma (ΔΣ) conversion technique, giving very good noise performance. Its current consumption is extremely low (2.3 μA ) and it can operate at low supply voltage from 2.0 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 14-bits. The over sampling ratio (OSR) of the ΔΣ-converter has four values to choose from for further optimization between conversion accuracy, speed and current consumption. The external sensor bridge can be used to sense not only pressure but also temperature, using the built-in sensor sampling switches. The MAS6502 communicates via a standard 2-wire I2C serial bus interface. CVDD 4.7μ VDD VDD VDD GND RP 4.7k TE3 VDD OSC VREFP SENSOR PI P SDA T N P COMMON R3 R4 P T VDD ADC I2 C CONTROL I/O SCL T I/O VDD XCLR EOC R2 MAS6502 T TEST TE1 GND GND Micro Analog Systems Oy Kutomotie 16 FI-00380 Helsinki Finland I/O VREFN R1 VDD RP 4.7k EEPROM TE2 OPTIONAL I/O MCU GND GND [email protected] www.mas-oy.com PRESS RELEASE 06 October 2011 FEATURES • • • • • • • • • • • • Low Standby Current Consumption 0.1 μA Typ Very Low Supply Current: 0.35 μA…2.3 μA Supply Voltage: 2.0 V…3.6 V Ratiometric ∆Σ Conversion Selectable Input Signal Ranges (VDD=2.35V): 325 mVPP, 220 mVPP, 150 mVPP, 100 mVP Selectable Optional Offset (VDD=2.35V): 33 mV Selectable Sensor Resistance Values 5 kΩ, 4.5 kΩ, 4 kΩ, 3.4 kΩ Over Sampling Ratio: 512, 256, 128, 64 Conversion Times 0.8 ms…10.6 ms Typ 2-Wire Serial Data Interface (I2C Bus) 256 Bit EEPROM Memory Good Noise Performance thanks to the ∆Σ Architecture MAS6502 is available in a QFN-16 4x4x0.75 package as well as tested wafers or dies in waffle pack. For further information and samples please contact Micro Analog Systems Oy. About Micro Analog Systems Founded in 1984, Micro Analog Systems Oy is a privately owned fabless semiconductor house located in Helsinki, Finland. MAS supplies Application Specific Standard Parts and ASICs for worldwide customer base. MAS current product portfolio consists of time signal receiver ICs, crystal oscillator ICs and AD converters for sensor applications as well as of other high performance analog ICs. For More Information Company Contact: Jan Gripsborn VP Sales & Marketing +46 708 778 110 [email protected] Micro Analog Systems Oy Kutomotie 16 FI-00380 Helsinki Finland [email protected] www.mas-oy.com