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MEMS ADW22035 acceleration Ic

Question asked by abitkin on Sep 9, 2011


Recently i got samples of ADW22035 acceleration sensors. When i tried to check those sensor i got only around 200 mv flucuation, i gentely  tapper the sensor to get vibration signal. As per datasheet it has 18 g range but i couldn't get(1.8 V) that much voltage output during tesing. when i give Vs=5 volt to self test pin, output shows around 90mv change. So basically sensor is not damaged and it works fine,

Can anybody suggest what could be the wrong? why am i not gettting vibration signal when i tapper the sensor  mounted PCB?



Thanks in advance