MXA6500G/M

Low Cost, Low Noise ±1 g Dual Axis Accelerometer with Absolute Analog Outputs

Features

Low cost
RoHS compliant
Resolution better than 1 mg
Dual axis accelerometer fabricated on a monolithic CMOS IC
On chip mixed signal processing
No moving parts; >50,000 g shock survival rating
5mm X 5mm X 1.55mm LCC package
2.7V to 3.6V single supply continuous operation
Ultra low initial Zero-g Offset
No adjustment needed outside

Application

• Tilt and motion sensing in cost-sensitive applications Smart handheld devices
• Computer security
• Input devices
• Pedometers and activity monitors
• Gaming controllers
• Toys and entertainment products

General Description

The MXA6500G/M 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 MXA6500G/M measures acceleration with a full-scale range of ±1 g and a sensitivity of 500mV/g @3V at 25°C. It can measure both dynamic acceleration (e.g. vibration) and static acceleration (e.g. gravity). The MXA6500G/M 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 max noise floor is 1 mg/ allowing signals below 1mg to be resolved at 1 Hz bandwidth. The MXA6500G/M is packaged in a hermetically sealed LCC surface mount package (5 mm x 5 mm x 1.55 mm height).

It is operational over a -40°C to 85°C (M) and 0°C to 70°C (G) temperature range.