|Low cost, Resolution better than 1 milli-g Dual axis accelerometer
fabricated on a monolithic CMOS IC On chip mixed signal processing No
moving parts; No loose particle issues >50,000 g shock survival
rating 5mm X 5mm X 2mm LCC package 2.7V to 5.25V single supply
continuous operation Compensated for Sensitivity over temperature Ultra
low initial Zero-g Offset No adjustment needed outside. Click here for the Summary
of Memsic Products.
The MXD7202ML is a low cost, dual axis accelerometer fabricated on a
standard, submicron CMOS process. It is a complete sensing system with on-chip
mixed signal processing.
The MXD7202ML measures acceleration with a full-scale range of +/-2g and a
sensitivity of 12.5%/g @5V. It can measure both dynamic acceleration (e.g.
vibration) and static acceleration (e.g. gravity).
The MXD7202ML design is based on heat convection and requires no solid proof
mass. This eliminates stiction and particle problems associated with competitive
devices and provides shock survival greater than 50,000 g, leading to
significantly lower failure rate and lower loss due to handling during assembly
and at customer field application.
The MXD7202ML provides two digital outputs that are set to 50% duty cycle at
zero g acceleration. The outputs are digital with duty cycles (ratio of pulse
width to period) that are proportional to acceleration. The duty cycle outputs
can be directly interfaced to a microprocessor.
The typical noise floor is 0.3 mg/ allowing signals
below 1 milli-g to be resolved at 1 Hz bandwidth. The MXD7202ML is packaged in a
hermetically sealed LCC surface mount package (5 mm x 5 mm x 2 mm height) and is
operational over a -40°C to +85°C (ML) temperature range. Click here