Universal Capacitive Readout

Product Overview

The Universal Capacitive Readout IC (MS3110) is a general purpose, ultra-low noise CMOS IC intended to support a variety of MEMS sensors that require a high resolution capacitive readout interface. The MS3110 requires only a single +5VDC supply and some decoupling components. No additional components are required.
MEMS sensors (such as accelerometers, rate sensors, and other sensors that can be modeled as variable capacitors) require a readout electronic interface that can sense small changes in capacitance. The MS3110 is capable of sensing capacitance changes down to 4.0 aF/rtHz, typical.
The MS3110 interfaces to either a differential capacitor pair or a single capacitive sensor. A high-level voltage output signal that is linear with full range of sense capacitance is provided.The MS3110 also includes an on-chip capacitive DAC (up to 10pF) for initial differential adjustments and/or for quasidifferential operation with a dummy capacitor. The MS3110 has provisions for trimming the gain and output offset. Bandwidth is also user programmable. An on-chip EEPROM is provided to store trim and program settings. An UCR Development Board is available for chip evaluation.

Universal Capacitive Readout

Applications Features and Specifications

  • Pressure Sensors
  • Accelerometers (low g)
  • Velocity Sensors
  • Displacement
  • Rate Sensors
  • Fluid Control
  • Touch Sensors
  • Flow Sensors
  • Motion Sensors
  • Gas Sensors
  • Capacitance resolution: 4.0aF/rtHz
  • Sensor modes: single variable or dual differential variable
  • On-chip dummy capacitor for quasi-differential operation and initial adjustment
  • Gain and DC offset trim
  • Programmable bandwidth adjustment 0.5 to 8kHz (9 steps)
  • 2.25VDC output for ADC reference/ratiometric operation
  • Single supply of + 5.0VDC
  • On-chip EEPROM for storage of settings
  • Available
    • MS3110BDPC-USB (Eva.l Board)
    • MS3110P - 16-pin packaged SOIC
    • MS3110D - Bare Die.


 

To view Various UCR applications see link:

http://www.irvine-sensors.com/sensor_asic

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  1. MS3110BDPC
    MS3110BDPC Call for Pricing

    Universal Capacitive Readout IC Evaluation Board KIT

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  2. MS3110BDPC-USB
    MS3110BDPC-USB Call for Pricing

    Universal Capacitive Readout IC Evaluation Board and KIT

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  3. MS3110D
    MS3110D Call for Pricing

    Universal Capacitive Readout IC Die

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  4. MS3110P
    MS3110P Call for Pricing

    Universal Capacitive Readout IC, 16-pin packaged SOIC

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