Introduction
ER-AMMG-2 is a low-cost attitude measurement type MEMS angular velocity sensor that can measure angular velocities up to ±400°/s. The digital output complies with the SPI slave mode 3 protocol. The angular rate data is presented in the form of 24-bit words.
ER-AMMG-2 is suitable for industrial, instrumentation, stabilization and other high-performance applications. The advanced differential sensor design eliminates the influence of linear acceleration and can operate in extremely harsh environments with shocks and vibrations.
ER-AMMG-2 uses a sealed ceramic LCC surface-mount package and can operate with a 5V power supply and a wide temperature range (-45°C to +85°C).
Features
Attitude measurement type MEMS angular velocity sensor
Up to ±400°/s measurement range
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
Application
Heading, pitch, roll measuring in AHRS
Motion survey and keeping in MRU
Attitude & azimuth keeping, positioning in IMU
Stabilizing & pointing in satellite antenna
Robotic Control & Orientation in Autonomous machines, Unmanned vehicles
Specifications
| Parameters | ER-AMMG-201 | ER-AMMG-202 | Unit |
| Input Range | 400 | 400 | dps |
| Bandwidth | 250 | 200 | Hz |
| Data Output Rate | 12K | 2K | Hz |
| Latency | <1.5 | 2 | ms |
| Scale factor | 16000 | 20000 | LSB/°/s |
| Scale factor non-linearity | <50 | 200 | ppm |
| Scale factor temp drift (1σ) | 300 | 500 | ppm |
| Scale factor repeatability (1σ) | <300 | <10 | ppm |
| Bias temp drift (1б) | 50 | 50 | dph |
| Bias temp drift (1б) (After temp compensation) | <10 | 20 | dph |
| Bias stability (1б 10s) | <3 | 5 | dph |
| Bias stability (1б 1s) | <9 | 15 | dph |
| Bias Repeatability | <3 | 5 | dph |
| RMS Noise (1-200Hz) | ±0.2 | 0.1 | dps |
| Random walk (ARW) | <0.125 | 0.25 | °/√h |
| Start up time | 1 | 0.8 | s |
| G-sensitivity | <1 | 5 | dph/g |
| Vibration Rectification Error | <1 | 1 | °/h/g²rms |
| Shock | 12g | 12g | rms |
| Vibration | 1000g 5ms 1/2 sine | 1000g 5ms 1/2 sine | / |
| Operation Temperature | -45~85 | -45~85 | °C |
| Synchronization mode | Default internal synchronization mode, external synchronization mode is optional | ||
Application Techniques
1.Integrated method of three-axis MEMS gyroscope
2.Comparative analysis of integrated modes of three-axis MEMS gyroscope
3.MEMS Gyroscope: Error Compensation By Allan Variance Method
4.Basic Knowledge of Bias Stability of MEMS Gyroscope
5.Bandwidth test method of MEMS gyroscope
6.MEMS Gyroscope: Sensitive Structure | Detection Circuit | Integrated Package