IMU115 MEMS inertial unit integrates 3-axis gyro and accelerometer, providing precise angular velocity and linear acceleration measurements. Features include ±250°/s gyro, ±4g accelerometer, and built-in compensation for temperature and installation errors. Compact and reliable, ideal for UAV navigation, autonomous driving, mapping, and stabilization.
1. Product features
1) Three-axis digital gyroscope:
a) ± 250º/s dynamic measuring range (500 °/s optional);
b) Zero bias stability: 10 °/h (GJB, 10s, typical value), 6.0 °/h(ALLAN, typical value);
2) Triaxial digital accelerometer:
a) ± 4g dynamic measurement range (configurable 16g);
b) Zero-bias stability: 0.12 mg (GJB, 10s), 0.065 mg (ALLAN);
3) High reliability: MTBF > 20000h;
4) Guaranteed accuracy within the full temperature range (-40 ℃ ~ 80 ℃):
built-in high-performance temperature calibration and compensation algorithm;
5) Suitable for working under strong vibration conditions;
6) Interface 1-way UART.
2. Field of application
▶ Intelligent driving
▶ Communication in motion
▶ Mapping
▶ Stabilize the platform
3. Product indicators
Table 1 Product indicators
| Parameter | Test conditions | Minimum value | Typical value | Maximum value | Unit |
| Gyroscope | Dynamic measuring range | | | 250 | 500 | º/s |
| Zero bias
stability | Allan variance | | 3.0 | | º/h |
| 10 s average (-40 ℃ ~ + 80 ℃, constant temperature) | | 6.0 | | º/h |
| Zero bias | Zero bias
range | | ±0.2 | | º/s |
| Zero bias variation over
full temperature range1 | | ±0.3 | | º/s |
| Scale factor | Scale factor accuracy | | 0.2 | | % |
| Scale factor nonlinearity | | 0.02 | | %FS |
| Bandwidth | | | 80 | | Hz |
| Accelerometer | Dynamic measuring range | | | 4 | 16 | g |
| Zero bias
stability | Allan variance | | 0.065 | | mg |
| 10 s average (-40 ℃ ~ + 80 ℃,
constant temperature) | | 0.12 | | mg |
| Zero bias | Zero bias
range | | ±3 | | mg |
| Zero bias change in full
temperature range, peak-to-peak value1 | | ±6 | | mg |
| Scale factor | Scale factor accuracy | | 0.3 | | % |
| Scale factor nonlinearity | | 0.03 | | %FS |
| Bandwidth | | | 80 | | Hz |
| Communication interface | | | | | | |
| 1-way UART | Baud rate | | 115.2 | 460.8 | Kbps |
| Sampling frequency | | | | | |
| UART | | 200 | 1000 | Hz |
| Electrical characteristics | Voltage | | 4.5 | 5 | 5.5 | V |
| Power consumption | | | | 0.35 | W |
| Ripple | P-P | | | 20 | mV |
| Structural characteristics | Size | | | 22.4×22.4×9.5 | | mm |
| Weight | | | 16 | | g |
| Use environment | Operating temperature | | -40 | | 80 | ℃ |
| Storage temperature | | -45 | | 85 | ℃ |
| Vibration | | | 20~2000Hz,3g | | |
| Impact | | | 1000g,0.5ms | | |
| Reliability | MTBF | | | 20000 | | h |
| Continuous working time | | | 120 | | h |
| 1: Calculate the zero bias of the whole temperature change process, the temperature change rate is ≤ 1 ℃/min, and the temperature range is -40 ℃ ~ + 80 ℃; |
structure outline
Product Tags:
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High-Stability IMU for Advanced Driver Assistance Systems ADAS Images
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