What is the difference between the ADXL345 and the ADIS16210?
The ADXL345 and ADXL346 are 3-axis, digital accelerometers that come in a tiny plastic package (3mmx5mmx1mm). The ADIS16210 is a fully-calibrated, 3-axis inclinometer module that uses a high-performance, 3-axis accelerometer function to sense orientation with respect to gravity. When compared to the ADXL345 or ADXL346, the ADIS16210 is larger, consumes more power and costs more, but provides much better performance over a wider range of conditions. When calibrated for use in tilt sensing function, the ADXL345 and ADXL346 are capable of providing ~1-2° of accuracy, over a narrower set of conditions than the ADIS16210 typically operates through. Preserving this accuracy depends on a minimizing stress factors, temperature range in some cases, regular bias updates. As a contrast, the ADIS16210 provides 0.1° of accuracy over a wide range of conditions that include a temperture range of -40°C to +85°C, a power supply range of +3.15 to +3.6V and a dynamic range of +/-60° (0.2° for the full +/-180° range). While the devices offer similar functions, they are in two different classes of performance.
One additional note. The ADIS16209 provides a smaller, lower cost (~3x) solution for high-accuracy tilt sensing. It uses a 2-axis accelerometer and provides similar accuracy as the ADIS16210, over a smaller dynamic range. When compared with the ADIS16210, the ADIS16209 provides similar performance which provides an inclinometer output accurate, 2-axis inclinometer, in a 16-pin, 9mm LGA package. It provides similar performance as the ADIS16210, over a smaller dynamic range. Both products offer a digital SPI interface, are calibrated over a wide temperature range (-40°C to +85°C) and wide power supply range (+3.0 to +3.6V). The following table offers a quick comparison in the performance and function of these two devices. Use the product page links to access datasheets, design tools, evaluation tools and pricing information.
±30° Measurement range
±60° Measurement range
±180° Measurement range
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