MXA2500K

Ultra Low Cost, ±1.0 g Dual Axis Accelerometer with Absolute Outputs MXA2500J/K FEATURES RoHS Compliant Dual axis accelerometer Monolithic CMOS construction On-chip mixed mode signal processing Resolution better than 2 mg 30Hz bandwidth 2.70V to 5.25V single supply operation Low height surface mount package Sck (optional) Internal Oscillator Temperature Sensor Voltage Reference Continous Self Test Tout CLK Vref Heater Control X axis Low Pass Filter Aout X APPLICATIONS Consumer Electronics Cell phones, PDAs, MP3 Players, Gaming consoles Screen and image orientation Tilt and motion input Menu navigation Auto power on/off Active HDD protection Pedometer Security Tamper detection Catastrophic event detection Black box event recorders Office Equipment Computer Peripherals Mouse input GENERAL DESCRIPTION The MXA2500J/K is an ultra low cost, dual axis accelerometer fabricated on a standard, submicron CMOS process. The MXA2500J/K measures acceleration with a full-scale range of ±1.0 g and a sensitivity of 500mV/g @3V power supply at 25°C. It can measure both dynamic acceleration (e.g., vibration) and static acceleration (e.g., gravity). 2-AXIS SENSOR Factory Adjust Offset & Gain Low Pass Filter Y axis Aout Y Vdd Gnd Vda MXA2500J/K FUNCTIONAL BLOCK DIAGRAM The MXA2500J/K design is based on heat convection and requires no solid proof mass. This eliminates stiction and particle problems, leading to significantly lower failure rates and lower loss ...