High Precision MEMS Gyro
The ER-MG-068 High Precision MEMS Gyroscope (Alternative of Gyro3300) is a single-axis MEMS angular rate sensor, which is capable of measuring angular velocity up to a maximum of ±400°/s and with digital output compliant to SPI slave mode 3 protocol. Angular rate data is presented as a 24-bit word.
The ER-MG-068 is intended for industrial, instrumentation, stabilization and other high performance applications. An advanced, differential sensor design resists the impact of linear acceleration, so that ER-MG-068 can operate in extremely harsh environments in the presence of impact and vibration.
The ER-MG-068 is available in a hermetically sealed ceramic LCC surface mount package and it is capable of operating at 5V supply and a wide temperature range (−45°C to +85°C).
Features
Proven and robust silicon MEMS gyro
Up to ±400°/s measurement range
0.3°/hr bias instability
0.125°/√hr Angular Random Walk
Digital output (SPI slave)
5V operation (4.75 ~ 5.25V supply)
Low power consumption (35 mA)
High shock and vibration rejection
Hermetically sealed ceramic LCC surface mount package (11 x 11 x 2mm)
Integrated temperature sensor
RoHS compliant
Applications
Precision instrumentation, stabilization
Guidance, navigation, control
Avionics, unmanned vehicles
Precision autonomous machines, robotics
Specifications
| Parameters | ER-MG-068 | Unit |
| Range | 400 | deg/s |
| Resolution | 24 | bits |
| Data Rate | 12K | Hz |
| Group delay | <1 | ms |
| Bandwidth (-3dB) | 300 | Hz |
| Scale Factor at 25°C | 20000 | lsb/deg/s |
| Scale Factor Repeatability (1σ) | <100 | ppm |
| Scale Factor VS Temperature (1σ) | 500 | ppm |
| Scale Factor Non-Linearity (1σ) | <300 | ppm |
| Bias Instability | <0.3 | deg/hr |
| Bias stability(1σ 10s) | <2 | deg/hr |
| Bias stability(1σ 1s) | <6 | deg/hr |
| Angular Random Walk | <0.125 | °/ √h |
| Bias error over temperature (1σ) | 50 | deg/Hr |
| Bias temperature variations, calibrated(1σ) | <10 | deg/Hr |
| Bias Repeatability (1σ) | <1 | deg/hr |
| Noise Peak to Peak | ±0.15 | deg/s |
| G-Sensitivity | <1 | °/hr/g |
| Vibration Rectification Error | <1 | °/hr/g (rms) |
| Startup Time | 1 | s |
| Sensor Resonant Frequency | 11K~13K | |
| Environment, Power and Physical | ||
| Shock (operating) | 500g, 1ms, half sine wave | |
| Shock (survival) | 10000g, 1.0ms, half sine wave | |
| Vibration (Operating) | 12grms, 20Hz to 2KHz Random Vibration | |
| Operating Temperature | -45°C~85°C | |
| Max storage (survival) Temperature | -55°C~125°C | |
| Supply voltage | 5±0.25V | |
| Current consumption | 40mA | |
Application Techniques
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