link to page 4 ADXL345-EPEnhanced ProductParameterTest ConditionsMinTyp1MaxUnit TEMPERATURE Operating Temperature Range −55 +105 °C WEIGHT Device Weight 30 mg 1 The typical specifications shown are for at least 68% of the population of parts and are based on the worst case of mean ±1 σ, except for 0 g output and sensitivity, which represents the target value. For 0 g output and sensitivity, the deviation from the ideal describes the worst case of mean ±1 σ. 2 Cross-axis sensitivity is defined as coupling between any two axes. 3 Bandwidth is the −3 dB frequency and is defined as half the output data rate, bandwidth = ODR/2. 4 The output format for the 3200 Hz and 1600 Hz ODRs is different from the output format for the remaining ODRs. This difference is described in the ADXL345 data sheet. 5 Output data rates below 6.25 Hz exhibit additional offset shift with increased temperature, depending on selected output data rate. Refer to the ADXL345 data sheet for details. 6 Self-test change is defined as the output (g) when the SELF_TEST bit = 1 (in the DATA_FORMAT register, Address 0x31) minus the output (g) when the SELF_TEST bit = 0. Due to device filtering, the output reaches its final value after 4 × τ when enabling or disabling self-test, where τ = 1/(data rate). The part must be in normal power operation (LOW_POWER bit = 0 in the BW_RATE register, Address 0x2C) for self-test to operate correctly. 7 Turn-on and wake-up times are determined by the user-defined bandwidth. At a 100 Hz data rate, the turn-on and wake-up times are each approximately 11.1 ms. For other data rates, the turn-on and wake-up times are each approximately τ + 1.1 in milliseconds, where τ = 1/(data rate). Rev. B | Page 4 of 12 Document Outline Features Enhanced Product Features Applications General Description Functional Block Diagram Revision History Related Documents Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Outline Dimensions Ordering Guide
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