With a “unique closed-loop architecture that provides an unprecedented level of vibration rectification and resistance to operational shocks, AXO315T0 exhibits a bias residual error of 0.8mg over its operating temperature range, enabling a precise and continuous inclination measurement for directional drilling tools”, according to the company.
Stated lifetime is over 1.000hr at high temperature – the part has been qualified through testing that included more than 1,000 hours powered at +165°C (final residual bias temperature error 1.5mg), temperature cycling from -55 to +165°C, and high temperature 20g(rms) random vibration (50Hz to 2kHz) combined with 50g(peak) sine sweeping (50 to 800Hz).
Typical bias drift is <1mg without recalibration after 1,000 hours at high temperature.
Noise density is 18μg/√Hz at 150°C.
Bandwidth is 150Hz and data is output over 24bit 2.5kHz SPI serial bus.
Power is required at 5V and the device has a 12 x 12 x 5.5mm J-Lead ceramic package.
Data sheets need to be requested, however there is a AXO315T0 data brief at this TDK web address.
In this article ‘g’ is gravity rather that gram.
Yesterday Murata announced an industrial-grade 3-axis IC accelerometer for structural health monitoring, machine control and construction.
