Silicon Anomaly ±450°/sec Precision
Angular Rate Sensor
ADIS16136 This anomaly list describes the known bugs, anomalies, and workarounds for the ADIS16136.
Analog Devices, Inc., is committed, through future silicon revisions, to continuously improve silicon functionality. Analog Devices tries
to ensure that these future silicon revisions remain compatible with your present software/systems by implementing the recommended
workarounds outlined here. PERFORMANCE ISSUES
Table 1. Alarm Variation with Temperature [er001]
Background
Issue
Workaround
Related Issues The ADIS16136 provides user-programmable alarms for monitoring.
On units that have earlier date codes than 1146, the alarm trip points vary with temperature when using the unfiltered data
option (ALM_CTRL[3] = 0).
On units that have earlier date codes than 1146, use the filtered data option (set ALM_CTRL[3] = 1) to achieve best stability in the
alarm trip points. On units that have date codes of 1146 or later, this issue has been fixed
None. Table 2. GYRO_OUT Oscillation [er002]
Background Issue
Workaround
Related Issues The ADIS16136 provides angular rate output data through two registers: GYRO_OUT and GYRO_OUT2. GYRO_OUT
represents the upper 16-bits of the angular rate data, while GYRO_OUT2 represents up the lower bits. The bits in
GYRO_OUT2 capture the bit growth associated with the averaging/decimation filter stage. When the decimation rate is
equal to zero, the bits in GYRO_OUT2 will not represent angular rate information. In general, this register configuration
preserves a normal distribution for the noise that has an even distribution on each side of the gyroscope’s bias. …