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Silicon Sensing - Gemini (Orthogonal) Accelerometers 1

Gemini® (Orthogonal) Accelerometers

CAS29X Series Gemini® (Orthogonal) Dual-Axis MEMS Accelerometers


Gemini® is a new family of integrated MEMS accelerometers from Silicon Sensing, comprising a dual-axis MEMS sensing device with a dedicated control ASIC in a single ceramic LCC package. Sensor data is output via analogue and digital (SPI®) interfaces. The CAS200 series of parts provides two in-plane axes of linear acceleration sensing and is available in five different dynamic ranges. CAS29x series accelerometers are aligned perpendicular to their PCB.

  •   CAS291 CAS292 CAS293 CAS294 CAS295
    Supply Voltage (Vdd): 3.3V 3.3V 3.3V 3.3V 3.3V
    Digital Dynamic Range: ±0.85g ±2.5g ±10g ±30g ±96g
    Analogue Dynamic Range: ±0.85g ±2.5g ±10g ±30g ±96g
    Bias Repeatability: ±100mg ±100mg ±100mg ±250mg ±500mg
    Bias over Temperature: ±50mg ±50mg ±50mg ±150mg ±500mg
    Noise Spectral Density: ≤50µg/√Hz ≤150µg/√Hz ≤150µg/√Hz ≤350µg/√Hz ≤1200µg/√Hz
    Bandwidth (nominal): >170Hz >170Hz >170Hz >170Hz >170Hz
    Operating Temperature: -40°C to +125°C -40°C to +125°C -40°C to +125°C -40°C to +125°C -40°C to +125°C
    Current Consumption: 3mA 3mA 3mA 3mA 3mA
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