Datasheet ADXL316 (Analog Devices) - 4

Data Sheet ADXL316 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 Range1 ±16 ±19 g Nonlinearity % of measurement range ±0.2 % Package Alignment Error ±1 Degrees Interaxis Alignment Error ±0.1 Degrees Cross Axis Sensitivity ±1 % SENSITIVITY (RATIOMETRIC)2 Each axis Sensitivity at XOUT, YOUT, and ZOUT VS = 3 V 50 57 64 mV/g Sensitivity Change due to Temperature3 VS = 3 V ±0.5 mV ZERO g BIAS LEVEL (RATIOMETRIC) Each axis 0 g Voltage at XOUT, YOUT, and ZOUT VS = 3 V, 25°C 1.2 1.5 1.8 V Initial 0 g Output Deviation from Ideal VS = 3 V, 25°C ±100 mV 0 g Offset vs. Temperature ±1 mg/°C NOISE PERFORMANCE Output Noise <4 kHz, VS = 3 V 1 mV Noise Density XOUT and YOUT 210 µg/√Hz rms ZOUT 450 µg/√Hz rms FREQUENCY RESPONSE4 XOUT and YOUT Bandwidth5 No external filter 1600 Hz ZOUT Bandwidth 5 No external filter 550 Hz RFILT Tolerance 27 32 37 kΩ Sensor Resonant Frequency 4.2 kHz SELF TEST (ST)6 Logic Input Low 0.3 V Logic Input High 2.7 V ST Input Resistance to Ground 30 50 kΩ Output Change ST = 0 to ST = 1 At XOUT −65 −50 −35 mV At YOUT 35 50 65 mV At ZOUT 70 90 110 mV OUTPUT AMPLIFIER Output Swing Low No load 0.1 V High No load 2.8 V POWER SUPPLY Operating Voltage Range 1.8 3.6 V Quiescent Supply Current 350 µA Turn-On Time7 10 ms OPERATING TEMPERATURE RANGE −40 +105 °C 1 Guaranteed by measurement of initial offset and sensitivity. 2 Sensitivity is essentially ratiometric to VS. Calculate sensitivity by using a scale factor (mV/V/g). Sensitivity = Scale Factor × VS. To calculate minimum and maximum sensitivity, the scale factors are 15 mV/V/g and 23 mV/V/g, respectively. 3 This parameter is defined as the output change from ambient to maximum temperature or ambient to minimum temperature. 4 Actual frequency response control ed by user-supplied external filter capacitors (CX, CY, and CZ). 5 Bandwidth = 1/(2 × π × 32 kΩ × C). For CX, CY = 0.003 µF, the bandwidth = 1.6 kHz. For CZ = 0.01 µF, the bandwidth = 500 Hz. For CX, CY, and CZ = 10 µF, the bandwidth = 0.5 Hz. 6 Self test response changes cubically with VS. 7 Larger values of CX, CY, and CZ increase turn-on time. Turn-on time is approximately 160 × (CX, CY, and CZ) + 4 ms, where CX, CY, CZ are in µF. Rev. A | Page 3 of 14 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION MECHANICAL SENSOR PERFORMANCE APPLICATIONS INFORMATION POWER SUPPLY DECOUPLING SETTING THE BANDWIDTH USING CX, CY, AND CZ SELF TEST DESIGN TRADE-OFFS FOR SELECTING FILTER CHARACTERISTICS: THE NOISE/BW TRADE-OFF USE WITH OPERATING VOLTAGES OTHER THAN 3 V AXES OF ACCELERATION SENSITIVITY LAYOUT AND DESIGN RECOMMENDATIONS OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS