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ADXL325BCPZ-RL Folha de dados(PDF) 3 Page - Analog Devices |
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ADXL325BCPZ-RL Folha de dados(HTML) 3 Page - Analog Devices |
3 / 16 page ADXL325 Rev. 0 | Page 3 of 16 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 Conditions Min Typ Max Unit SENSOR INPUT Each axis Measurement Range ±5 ±6 g Nonlinearity Percent of full scale ±0.2 % 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 156 174 192 mV/g Sensitivity Change Due to Temperature3 VS = 3 V ±0.01 %/°C ZERO g BIAS LEVEL (RATIOMETRIC) 0 g Voltage at XOUT, YOUT, ZOUT VS = 3 V 1.3 1.5 1.7 V 0 g Offset vs. Temperature ±1 mg/°C NOISE PERFORMANCE Noise Density XOUT, YOUT, ZOUT 250 μg/√Hz rms FREQUENCY RESPONSE4 Bandwidth XOUT, YOUT5 No external filter 1600 Hz Bandwidth ZOUT5 No external filter 550 Hz RFILT Tolerance 32 ± 15% kΩ Sensor Resonant Frequency 5.5 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 −90 −190 −350 mV Output Change at YOUT Self test 0 to 1 +90 +190 +350 mV Output Change at ZOUT Self test 0 to 1 +90 +320 +580 mV OUTPUT AMPLIFIER Output Swing Low No load 0.1 V Output Swing High No load 2.8 V POWER SUPPLY Operating Voltage Range 1.8 3.6 V Supply Current VS = 3 V 350 μA Turn-On Time7 No 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 Turn-on time is dependent on CX, CY, CZ and is approximately 160 × CX or CY or CZ + 1 ms, where CX, CY, CZ are in μF. |
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