Thermal accelerometers
- Technology
- Accelerometers and tilt sensors
- Partner
- Memsic
Thermal accelerometers use a proprietary patented approach with no moving parts, highly reliable, easy to manufacture and ultra-low-cost. The components integrate leading-edge sensor technology with mixed-signal processing circuitry onto a single chip design with the CMOS IC process.
The key technology is the use of a heated gas as ‘proof mass’ and this allows to have negligible sensitivity to high-frequency vibration (e.g. motor vibration in automotive application), high tolerance to stress changes and a very low zero-g offset.
Thermal MEMS accelerometers are used in many proven applications in consumer, industrial and automotive safety products.
Range features
A high level overview of what this range offers
- No effect with high-frequency vibrations
- High tolerance to stress changes after SMT mounting
- Very low zero-g offset
- High resistance to mechanical shock
- Monolithic 3-axis structure available
- Negligible temperature hysteresis
- Unique programmable anti-vibration filter and angle threshold for tip-over application
What’s in this range?
All the variants in the range and a comparison of what they offer
| Model | Number of axis | Full scale ranges | Package | Signal output | Typical application field |
|---|---|---|---|---|---|
MXC4005XC | 3 | ±2g,±4g, ±8g (selectable) | Smallest Wafer Level Package (WLP) Footprint 1.18×1.70×0.85mm | I2C | Consumer (cellular, tablet, pedometer) |
MXC6655XA | 3 | ±2g,±4g, ±8g (selectable) | 12-pin LGA 2 × 2 ×1 mm Package | I2C | Consumer (cellular, tablet, pedometer) |
MXC6255XC | 2 | ±2g | Chip Scale Package (1.18×1.705×0.955mm) | I2C | Consumer (cellular, tablet, pedometer) |
MXC6255XU | 2 | ±2g | 6-pin 3 x 3 mm LCC package | I2C | Consumer (cell phones, digital cameras) Household (iron, fan heaters) |
MXD2020xL | 2 | ±1g | LCC-8 5 x 5 x 2 mm | PWM | Industrial (elevator / gas line) Automotive ( Vehicle Security/Vehicle stability control / Headlight Angle Control / Tilt Sensing / Fatigue sensing) |
MXR2999xL | 2 | ±1g | LCC-8 5 x 5 x 2 mm | Ratiometric Analog Output | Industrial Automotive ( Vehicle Security/Active Suspension/ABS Headlight Angle Control) |
MXR7202ML | 2 | ±2g | LCC-8 5 x 5 x 2 mm | Ratiometric Analog Output | GPS Electronic compass tilt correction Consumer (LCD projectors, blood pressure Monitor, digital cameras) |
MXA2500xL | 2 | ±1g | LCC-8 5 x 5 x 2 mm | Absolute Analog Output | Automotive – Vehicle Security/Active Suspension/ABS Headlight Angle Control/Tilt Sensing White Goods – Spin/Vibration Control |
MXC6244AU | 2 | ±8g | 6-pin 3 x 3 x 1 mm LCC package | I2C (with programmable anti-vibration filter and angle threshold) | Inclination Sensing in High Vibration Environments Motorcycle Fall-Down Detection Off-Road Vehicle Roll Detection |
MXD624xAU | 2 | Tip-over sensor | 6-pin 3 x 3 x 1 mm LCC package | Digital output according to threshold detection | Motorcycle Fall-Down Detection Off-Road Vehicles Jetski, watercraft Other Tip-Over Detection (Space heaters, Irons, etc) |
MXC624xEU | 2 | ±30 Degrees of Inclination | 3 x 3 x 1mm Ceramic LCC-6 package | I2C (with programmable anti-vibration filter) | Antenna pitch and roll monitoring / Inclination sensing in high vibration environments |
MXC6245XU | 2 | ±2g | 6-pin 3 x 3mm Ceramic LCC package | I2C (with built-in orientation detection) | Car Navigation System Projector Auto Keystone Correction |
MXP7205VF | 2 | ±5g | LCC-8 5 x 5 x 2 mm | SPI | Automotive Vehicle Stability Control Roll Over Detection Electronic Parking Break – Hill Start Assist Headlight Leveling and Steering |
MXP7205VW | 2 | ±5g | LCC-8 5.5 x 5.5 x 2.7 mm (both XY and XZ sensing possible) | SPI | Automotive Vehicle Stability Control Roll Over Detection Electronic Parking Break – Hill Start Assist Headlight Leveling and Steering |
MXR7305VF | 2 | ±5g | LCC-8 5 x 5 x 2 mm | Ratiometric Analog Output | Automotive Roll over sensing, VSC/EPB application |
MXR7900CF | 2 | ±1g | LCC-8 5 x 5 x 2 mm | Ratiometric Analog Output | Automotive Roll over sensing, VSC/EPB application |
