CAS290 (Dual-axis, orthogonal)

Dual-axis accelerometer sensors delivering high performance linear acceleration measurement in a small surface mount package.

Gemini® is our family of integrated MEMS accelerometers. The CAS290 version is mounted on its side, which enables the three degree of freedom measurements to be made with a single board (PCBA).

Each device comprises a dual-axis MEMS sensing device with a dedicated control ASIC in a single hermetically sealed ceramic chip scale package. Five measurement ranges are available; ±0.85g, ±2.5g, ±10g, ±30g and ±96g. Measurement data and device temperature is output via analogue and digital (SPI®) interfaces. Additional built in test (BIT) status is available from the digital interface.

Production Status: In Production
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Availability: Available
Customer Applications: New and existing applications





Supply Voltage3.3V3.3V3.3V3.3V3.3V
Bias over Temperature±50mg±50mg±0.75mg±150mg±500mg
Bias Repeatability±0.35mg±0.75mg±0.75mg±3.0mg±8.0mg
Bandwidth (nominal)>170Hz (Digital) >250Hz (Analogue)>170Hz (Digital) >250Hz (Analogue)>170Hz (Digital) >250Hz (Analogue)>170Hz (Digital) >250Hz (Analogue)>170Hz (Digital) >250Hz (Analogue)
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
Typ. Current Consumption3mA3mA3mA3mA3mA
Operational Shock1000g 1ms ½ sine1000g 1ms ½ sine1000g 1ms ½ sine1000g 1ms ½ sine1000g 1ms ½ sine
Bias over Temperature±50mg±50mg±50mg±150mg
Axes of Acceleration22222
Acceleration Range±0.85g±2.5g±10g±30g±96g
Noise Spectral Density≤50µg/√Hz≤150µg/√Hz≤150µg/√Hz≤350µg/√Hz≤1200µg/√Hz
Vibration Rectification0.15mg/g2 @ 0.5g rms0.15mg/g2 @ 2.0g rms0.15mg/g2 @ 8.0g rms0.15mg/g2 @ 12g rms0.15mg/g2 @ 12g rms
Digital Scale Factor 33,500lsb/g 11,000lsb/g 2,800lsb/g 1,050lsb/g300lsb/g
Analogue Scale Factor1150mV/g375mV/g96mV/g36mV/g10mV/g
Bias Stability (One Year)±7.5mg±7.5mg±7.5mg±25mg±75mg
Velocity Random Walk(m/s/√h) 0.07(m/s/√h) 0.07(m/s/√h) 0.07(m/s/√h) 0.07(m/s/√h) 0.07
Datasheet Datasheet Datasheet Datasheet Datasheet

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