MXR6400Q

Ultra High Performance ±1g Dual Axis Accelerometer with Ratiometric Outputs

Features

Ultra Low Noise 0.13 mg/ typical
Ultra Low Offset Drift 0.1 mg/°C typical
Resolution better than 1 mg
Monolithic CMOS IC
On chip mixed signal processing
50,000 g shock survival rating
Low profile LCC package
2.7V to 3.6V single supply
No adjustment needed outside

Application

• Automotive –
  Vehicle Security
  Active Suspension
  ABS
  HED Angle Control
  Tilt Sensing
• Security –
  Gas Line
  Elevator
  Fatigue Sensing
• Office Equipment –
  Computer Peripherals
  PDA’s
  Cell Phones
• Gaming –
  Joystick
  RF Interface
  Menu Selection
  Tilt Sensing
• White Goods –
  Spin
  Vibration Control

General Description

The MXR6400Q is a low noise, low profile, dual axis accelerometer fabricated on a standard CMOS process. It is a complete sensing system with on-chip mixed mode signal processing. The MXR6400Q measures acceleration with a full-scale range of ±1 g and a sensitivity of 400mV/g at 25°C. It can measure both dynamic acceleration (e.g., vibration) and static acceleration (e.g., gravity). The MXR6400Q design is based on heat convection and requires no solid proof mass. This eliminates stiction and particle issues normally found with capacitive based technology, and significantly lowers field failure rate and in-line loss due to handling during assembly.

The MXR6400Q provides two ratiometric analog outputs.

The maximum noise floor is 0.18 mg/ allowing signals below 0.5 mg to be resolved at 1 Hz bandwidth and the 3dB rolloff of the device occurs at 8 Hz. The MXR6400Q is available in a hermetically sealed low profile LCC surface mount package measuring 5mm x 5mm x 1.55m.