ADXL204 Datasheet | Analog Devices

.. Precision ±1.7 g Single-/Dual-Axis i MEMS® Accelerometer ADXL204 Features High performance, dual-axis accelerometer on a single IC chip Specified at VS = 3.3 V 5 mm × 5 mm × 2 mm LCC package Better than 2 mg resolution at 60 Hz Low power: 500 μA at VS = 3.3 V (typical) High zero g bias stability High sensitivity accuracy - 40°C to +125°C temperature range X-axis and Y-axis aligned to within 0.1° (typical) BW adjustment with a single capacitor Single-supply operation 3500 g shock survival Ro HS pliant patible with Sn/Pb- and Pb-free solder processes GENERAL DESCRIPTION The ADXL204 is a high precision, low power, plete dualaxis accelerometer with signal-conditioned voltage outputs, all on a single monolithic IC. Like the ADXL203, it measures acceleration with a full-scale range of ±1.7 g; however, the ADXL204 is tested and specified for 3.3 V supply voltage, whereas the ADXL203 is tested and specified at 5 V. Both parts function well over a wide 3 V to 6 V operating voltage range. The ADXL204 can measure both dynamic acceleration (for example, vibration) and static acceleration (for example, gravity). The typical noise floor is 170 μg/√Hz, allowing signals below 2 mg (0.1° of inclination) to be resolved in tilt sensing applications using narrow bandwidths (<60 Hz). The user selects the bandwidth of the accelerometer using Capacitor CX and Capacitor CY at the XOUT and YOUT pins. Bandwidths of 0.5 Hz to 2.5 k Hz can be selected to suit the application. The ADXL204 is available in a 5 mm × 5 mm × 2 mm, 8-terminal hermetic LCC package. APPLICATIONS Vehicle dynamic control (VDC)/electronic stability program (ESP) systems Electronic chassis controls Electronic braking Platform stabilization/leveling Navigation Alarms and motion detectors High accuracy, 2-axis tilt sensing FUNCTIONAL BLOCK DIAGRAM +5V VS CDC SENSOR RFILT 32kΩ ST RFILT 32kΩ YOUT CY XOUT CX 05512-001 AC AMP DEMOD OUTPUT AMP OUTPUT AMP Figure 1. Rev....