The Silicon Sensing Systems Japan Rate Gyroscope CRS03 is an angular velocity sensor that uses Silicon MEMs technology and is known for its good performance under severe vibration/shock and temperature change. It outputs analog DC voltage proportional to the angular velocity, centered at approximately 2.5V dc with a supply voltage of 5Vdc.
The CRS03 is a silicon‑MEMS gyroscope offering stable analog DC output proportional to angular velocity, with low temperature drift and good repeatability. It is used in automotive ESP systems, GPS‑aided direction controllers, antenna stabilizers, RC helicopters, autonomous guided vehicles, marine autopilots, inertial control units, bipedal robots, and telematics.
Key specifications include a 5 V supply, a rate range of up to ±100 deg/sec (±200 deg/sec for the CRS03‑04 variant), a scale factor of 20 mV/(deg/sec), operating temperature from –40 °C to +85 °C, and a bandwidth greater than 10 Hz. The device requires a low‑pass filter on the output to reduce internal noise for anti‑aliasing.
| Rate range | 0 to ±100 deg/sec (CRS03‑01/02) |
|---|---|
| Scale Factor (SF) | 20 mV/(deg/sec) (CRS03‑01/02) |
| Supply Voltage (Vdd) | 5.00 V ±0.25 V DC |
| Operating Temperature | -40 °C to +85 °C |
| Bandwidth | >10 Hz (up to 50 Hz for CRS03‑11) |
| Quiescent Noise | <1 mV rms (up to 10 Hz) |
| Dimensions | 29 mm × 29 mm × 18.4 mm |
| Output Impedance | 100 Ω |
The CRS03 operates from a 5.00 V DC supply with a tolerance of ±0.25 V.
It can operate from –40 °C up to +85 °C (CRS03‑11 up to +60 °C).
A hardware low‑pass filter is recommended to attenuate internal transistor amplifier noise for anti‑aliasing.