3-Space™ Nano IC
The 3-Space™ Nano IC provides complete AHRS functionality in a 24-pin DFN package weighing 0.01 grams. It combines triaxial gyroscope, accelerometer, and magnetometer sensing with onboard QGRAD2 processing for electronic designs with stringent space and weight limits.
The chip outputs filtered orientation at up to 200 Hz, with raw, corrected, and normalized measurements also available. Configurable filtering, oversampling, and reference axes allow developers to tailor the output, accessed through SPI, I2C, or asynchronous serial. A Nano Carrier Board simplifies PCB integration, and a separate evaluation kit adds USB access for bench testing.
Specifications:
| Dimensions | 3.8 x 5.2 x 1.1 mm |
| Weight | 0.01 g |
| Supply voltage | 3.3 V |
| Current consumption | 20 mA at 3.3 V |
| Package | 24-pin DFN |
| Interfaces | SPI, I2C, asynchronous serial |
| Filter update rate | Up to 200 Hz (QGRAD2) |
| Dynamic orientation accuracy | ±1.5° (average when calibrated) |
| Orientation range | 360° about all axes |
| Accelerometer ranges | ±2 / ±4 / ±8 / ±16g |
| Gyroscope ranges | ±125 / ±250 / ±500 / ±1,000 / ±2,000°/s |
| Gyroscope bias stability | 11°/hr (average across axes at 25°C) |
| Orientation outputs | Quaternion, Euler angles, rotation matrix, axis angle, two-vector |
| SPI clock rate | Up to 2.5 MHz |
Maximum sensor update rates depend on communication and filter settings.
