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MAS6510 数据表(PDF) 1 Page - Micro Analog systems |
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MAS6510 数据表(HTML) 1 Page - Micro Analog systems |
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1 / 32 page  DA6510.009 6 September, 2018 . 1 (32) MAS6510 Capacitive Sensor Signal Interface IC • Single or Dual Capacitance Sensors • Very Low Power Consumption • On Chip Temperature Sensor • VDD Level Monitoring • 24-Bit Ratiometric CDC • EEPROM Calibration Memory • SPI or I2C Bus with programmable I2C device address DESCRIPTION MAS6510 capacitive sensor signal Interface IC can interface both single and dual capacitance sensors. It uses a 24-bit Capacitance-to-Digital Converter (CDC), which employs a delta- sigma (ΔΣ) conversion technique. The output data from the high order ΔΣ-modulator is processed by an on-chip decimator filter, producing a high resolution conversion result. The converter is run by an internal clock oscillator making an external converter clock unnecessary. The converter input range is programmable to meet various sensor offset and changing capacitance values. At normal clock frequency maximum sensor capacitance is 20pF but up to 160pF value can be reached by using available clock division options. The measurement resolution depends on the programmed capacitance range and over sampling ratio (OSR) selections. MAS6510 supports two capacitance measurement modes. The output can be proportional either to capacitance difference (CS-CR) or to capacitance ratio (CS-CR)/CS. The IC is designed especially to meet the requirement for low power consumption, thus making it an ideal choice for battery powered systems. Current consumption values of 50.3 µA with high resolution or 3.5 µA with low resolution, at a conversion rate of one conversion per second, can be achieved. In addition to measuring capacitance the device has an internal temperature sensor for temperature measurement and temperature compensation purposes. The VDD level monitoring feature is useful especially in battery operated systems. The 256-bit EEPROM memory stores trimming and calibration coefficients on chip. A serial interface, compatible with a bi-directional 2- wire I2C bus and 4-wire SPI bus, is used for conversion setup, starting a conversion and reading the conversion result. FEATURES APPLICATIONS • Sensor Offset and Gain Adjustment • Changing Capacitance Range C 2pF…30pF • Internal Offset Capacitance Matrix 0pF…22pF • External Capacitance up to 160pF • Resolution 17.5 bit • Internal Clock Oscillator • On Chip Temperature Sensor -40 C...+85C • VDD Level Monitoring • Low Voltage Operation 1.8 V/1.9V …3.6 V • Low Supply Current: 3.5 µA...50.3 µA • Conversion Time 5.8ms...82.6ms (12Hz...173Hz) • Internal 256-bit EEPROM Calibration Memory • Internal Clock Oscillator • I2C and SPI Compatible Serial Interface • QFN-16 Package • Capacitive Pressure Sensors • Humidity Sensors • Medical Devices • Flow Meters • Sport Watches • Altimeter and Barometer Systems • Mobile and Battery Powered Systems • Low Frequency Measurement applications • Current/Power Consumption Critical Systems • Industrial and Process Control applications in noisy environments |
类似零件编号 - MAS6510 |
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类似说明 - MAS6510 |
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