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ADXL377 Arkusz danych(PDF) 3 Page - Analog Devices |
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ADXL377 Arkusz danych(HTML) 3 Page - Analog Devices |
3 / 13 page Preliminary Technical Data ADXL377 Rev. PrB | Page 3 of 13 SPECIFICATIONS TA = 25°C, VS = 3 V, CX = CY = CZ = 0.1 μF, acceleration = 0 g, unless otherwise noted. All minimum and maximum specifications are guaranteed. Typical specifications are not guaranteed. Table 1. Parameter Test Conditions/Comments Min Typ Max Unit SENSOR INPUT Each axis Measurement Range ±200 g Nonlinearity % of full scale ±0.3 % Package Alignment Error ±1 Degrees Interaxis Alignment Error ±0.1 Degrees Cross-Axis Sensitivity1 ±1 % SENSITIVITY (RATIOMETRIC)2 Each axis Sensitivity at XOUT, YOUT, ZOUT VS = 3 V 5.8 6.5 7.2 mV/g Sensitivity Change Due to Temperature3 VS = 3 V ±0.01 %/°C 0 g BIAS LEVEL (RATIOMETRIC) 0 g Voltage at XOUT, YOUT, ZOUT VS = 3 V, 25oC 1.4 1.5 1.6 V 0 g Offset vs. Temperature XOUT, YOUT ±11 mg/°C 0 g Offset vs. Temperature ZOUT ±15 mg/°C NOISE PERFORMANCE Noise Density XOUT, YOUT 2.4 mg/√Hz rms Noise Density ZOUT 3.6 mg/√Hz rms FREQUENCY RESPONSE4 Bandwidth XOUT, YOUT5 1 nF external filter 1600 Hz Bandwidth ZOUT5 1 nF external filter 1200 Hz RFILT Tolerance 32 ± 15% kΩ Sensor Resonant Frequency 16.5 kHz SELF TEST6 Logic Input Low 0.6 V Logic Input High 2.4 V ST Actuation Current 60 μA Output Change at XOUT Self test 0 to 1 - 6.5 mV Output Change at YOUT Self test 0 to 1 6.5 mV Output Change at ZOUT Self test 0 to 1 11.5 mV OUTPUT AMPLIFIER Output Swing Low No load 0.1 V Output Swing High No load 2.8 V POWER SUPPLY Operating Voltage Range7 1.8 3.0 3.6 V Supply Current VS = 3 V 300 μA Turn-On Time8 1nF external filter 1 ms TEMPERATURE Operating Temperature Range −40 +85 °C 1 Defined as coupling between any two axes. 2 Sensitivity is essentially ratiometric to VS. 3 Defined as the output change from ambient-to-maximum temperature or ambient-to-minimum temperature. 4 Actual frequency response controlled by user-supplied external filter capacitors (CX, CY, CZ). 5 Bandwidth with external capacitors = 1/(2 × π × 32 kΩ × C). For CX, CY = 0.003 μF, bandwidth = 1.6 kHz. For CZ = 0.01 μF, bandwidth = 500 Hz. For CX, CY, CZ = 10 μF, bandwidth = 0.5 Hz. 6 Self test response changes cubically with VS. 7 Tested at 3.0 V and guaranteed by design only (not tested) to work over the full range from 1.8 V to 3.6 V. 8 Turn-on time is dependent on CX, CY, CZ and is approximately 160 × (CX or CY or CZ) + 1, where CX, CY, and CZ are in μF and the resulting turn-on time is in ms. |
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