EVAL-ADXRS290-PMDZ
Ultralow Noise, Dual-Axis MEMS Gyroscope for Stabilization Applications
Overview
The EVAL-ADXRS290-PMDZ is a simple Pmod form factor evaluation board for the ADXRS290, a high-performance MEMS pitch-and-roll (dual-axis in-plane) angular rate sensor (gyroscope) designed for use in stabilization applications.
The solution senses and digitizes the X-axis and Y-axis (also called roll and pitch) angular rates, producing a positive reading for clockwise rotation about the X-axis and Y-axis.
The ADXRS290 provides an output full-scale range of ±100°/s with a sensitivity of 200 LSB/°/s. Its resonating disk sensor structure enables angular rate measurement about the axes normal to the sides of the package around an in-plane axis. Angular rate data is formatted as a 16-bit two’s complement and is accessible through an SPI digital interface. The ADXRS290 exhibits a low noise floor of 0.004°/s/√Hz and features programmable high-pass and lowpass filters.
The ADXRS290 communicates via 4-wire SPI and operates as a peripheral (subordinate) device, with a maximum clock frequency of 12 MHz.
The digital communication on the EVAL-ADXRS290-PMDZ is accomplished using a standard expanded SPI PMOD port.
Connector P1 |
|
|---|---|
Description |
Pin(s) |
SS |
1 |
MOSI |
2 |
MISO |
3 |
SCLK |
4 |
GND |
5, 11 |
IOVDD |
6, 12 |
SYNC |
7 |
Features
Pitch and roll rate gyroscope
Ultralow noise: 0.004°/s/√Hz
High vibration rejection over a wide frequency range
Power saving standby mode
80 µA current consumption in standby mode
Fast startup time from standby mode: <100 ms
Low delay of <0.5 ms for a 30 Hz input at the widest bandwidth setting
Serial peripheral interface (SPI) digital output
Programmable high-pass and low-pass filters
2000 g powered acceleration survivability
2.7V to 5.0V operation
−25°C to +85°C operation
PMOD form factor
Applications
Optical image stabilization
Platform stabilization
Wearable products
Getting Started
The EVAL-ADXRS290-PMDZ can be used for a wide range of applications, and the following demos are meant to show examples of the flexibility of the board. To get started with setup, configuration, and example use cases, please proceed to the PMOD Guide and follow the provided serial terminal setup.
Recommendations
People who follow the flow that is outlined, have a much better experience with things. However, like many things, documentation is never as complete as it should be. If you have any questions, feel free to ask on our EngineerZone forums, but before that, please make sure you read our documentation thoroughly.
Warning
All the products described on this page include ESD (electrostatic discharge) sensitive devices. Electrostatic charges as high as 4000V readily accumulate on the human body or test equipment and can discharge without detection. Although the boards feature ESD protection circuitry, permanent damage may occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. This includes removing static charge on external equipment, cables, or antennas before connecting to the device.
Help and Support
Please go to Help and Support page.