Datasheet Analog Devices ADIS16485 — 数据表

Tactical Grade,
Six Degrees of Freedom Inertial Sensor
ADIS16485 Data Sheet
FEATURES GENERAL DESCRIPTION Triaxial, digital gyroscope, ±450°/sec dynamic range
±0.05° orthogonal alignment error
6°/hr in-run bias stability
0.3°/√hr angular random walk
0.01% nonlinearity
Triaxial, digital accelerometer, ±5 g
Triaxial, delta angle, and delta velocity outputs
Fast start-up time, ~500 ms
Factory calibrated sensitivity, bias, and axial alignment
Calibration temperature range: −40°C to +85°C
SPI-compatible serial interface
Embedded temperature sensor
Programmable operation and control
Automatic and manual bias correction controls
4 FIR filter banks, 120 configurable taps
Digital I/O: data-ready alarm indicator, external clock
Alarms for condition monitoring
Power-down/sleep mode for power management
Optional external sample clock input: up to 2.4 kHz
Single command self test …

Tactical Grade
Six Degrees of Freedom Inertial Sensor
ADIS16485 Silicon Anomaly This anomaly list describes the known bugs, anomalies, and workarounds for the ADIS16485.
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 within this document. PERFORMANCE ISSUES
Table 1. Incorrect Scale Factors for the x_DELTANG_OUT and x_DELTANG_LOW Registers [er001]
Background Issue
Workaround
Related Issues The ADIS16485 provides delta angle registers that contain sample-to-sample angle displacement estimates for all three
axes. The x_DELTANG_OUT registers provide the upper 16 bits, and the x_DELTANG_LOW registers provide the lower 16
bits. The x_DELTANG_OUT registers typically provide a scale factor of 720 ÷ 215 degrees per LSB, and the x_DELTANG_LOW
registers provide additional resolution (720 ÷ 231 degrees per LSB).
On units that have firmware Revision 2.01 (or earlier), the delta angle registers do not have the same scale factors as those
listed in the product data sheet. For these units, the scale factors are 274 ÷ 215 degrees per LSB for x_DELTANG_OUT and
274 ÷ 231 degrees per LSB for x_DELTANG_LOW.
Use 274 ÷ 215 degrees per LSB for the x_DELTANG_OUT scale factor and 274 ÷ 231 degrees per LSB for the x_DELTANG_LOW
scale factor. Use the FIRM_REV register to determine the firmware revision of a unit. For example, FIRM_REV = 0x0201
equates to a firmware revision of 2.01.
None. Table 2. Incorrect Scale Factors for the x_DELTVEL_OUT and x_DELTVEL_LOW Registers [er002]
Background Issue
Workaround
Related Issues The ADIS16485 provides delta velocity registers that contain sample-to-sample velocity estimates for all three axes. The …