It starts with the finest single-crystal piezoelectric quartz, micromachined using Systron Donner Automotive’s advanced MEMS fabrication. This produces the unique double-ended tuning fork which forms the sensor element within every MicroGyro®. The sensor element is mated with a custom ASIC inside a hermetically-sealed unit no bigger than a coin—but its size belies its power, for the MicroGyro® easily outclasses all competitors, making it the best-value choice for systems such as ESC.
The MicroGyro® can withstand punishing high temperatures—clear up to 125 C—making it ideal for underhood installations. Output is SPI digital, and is fully compensated at all temperature ranges; unlike others, the MicroGyro’s performance is guaranteed at all specs. The MicroGyro® can maintain an offset stability of ±1 degree per second up to 800 degrees per second. This precision sensing eliminates redundancy by allowing a single MicroGyro® to support both high and low-performance applications—an industry exclusive! And then there’s CBIT™, the patented Continuous Built-In Test technology which monitors the unit’s health at all times—and not just during start-up.
| Characteristic | Min; | Nom | Max | Units | |
|---|---|---|---|---|---|
| General | Supply Voltage | 4.75 | 5.00 | 5.25 | VDC |
| Supply Current | 40 | mA | |||
| Operating Temperature | -40 | +125 | deg C | ||
| Digital Output | Range | -300 | +300 | o/s | |
| Scale Factor Error | -3.0 | +3.0 | % | ||
| Linearity (BFSL) | -0.2 | +0.2 | o/s | ||
| Total Offset Error | -2.0 | +2.0 | o/s | ||
| Offset Error Due to Temperature | -1.0 | +1.0 | o/s | ||
| Frequency Response (Factory Set) | 35 / 65 / 120 | Hz | |||
| G-Sensitivity | 0.1 | o/s/g, any axis | |||
| Cross Axis Sensitivity | 3.5 | % | |||
| Noise | 0.03 | (o/s) / Rt?Hz | |||
| Vibration Sensitivity (3 Grms) | 0.25 | o/s | |||
| Turn-On Time | 1.0 | sec | |||
| Resolution | 0.025 | (o/s) / LSB | |||
| SPI Interface | SPI Operating Voltages | 3.3 | 5.0 | Volts | |
| SPI Data Rate | 0.25 | 2.0 | MHz | ||
| Data Refresh Rate | 1.005 | 1.05 | 1.095 | kHz | |
| Data Latency | 9 | msec | |||
| Analog Output | Scale Factor (Ratiometric, VDD=5.0VDC / Non-Ratiometric) | 27/22 20/16 10/18 6/5 |
mv/ o/s | ||
| Static Offset | Vdd/2 | Volts | |||
© 2008 Systron Donner Automotive |
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