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MXD7210GL Dataheets PDF



Part Number MXD7210GL
Manufacturers MEMSIC
Logo MEMSIC
Description Low Noise -10 g Dual Axis Accelerometer
Datasheet MXD7210GL DatasheetMXD7210GL Datasheet (PDF)

www.DataSheet4U.com Low Cost, Low Noise ±10 g Dual Axis Accelerometer with Digital Outputs MXD7210GL/HL/ML/NL FEATURES Low cost Resolution better than 1milli-g at 1Hz Dual axis accelerometer fabricated on a monolithic CMOS IC On chip mixed signal processing No moving parts; No loose particle issues >50,000 g shock survival rating 5mm X 5mm X 2mm LCC package 2.7V to 5.25V single supply continuous operation Compensated for Sensitivity over temperature Ultra low initial Zero-g Offset No adjustment.

  MXD7210GL   MXD7210GL


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www.DataSheet4U.com Low Cost, Low Noise ±10 g Dual Axis Accelerometer with Digital Outputs MXD7210GL/HL/ML/NL FEATURES Low cost Resolution better than 1milli-g at 1Hz Dual axis accelerometer fabricated on a monolithic CMOS IC On chip mixed signal processing No moving parts; No loose particle issues >50,000 g shock survival rating 5mm X 5mm X 2mm LCC package 2.7V to 5.25V single supply continuous operation Compensated for Sensitivity over temperature Ultra low initial Zero-g Offset No adjustment needed outside APPLICATIONS Computer Peripherals Information Appliances Alarms and Motion Detectors Disk Drives Vehicle Security GENERAL DESCRIPTION The MXD7210GL/HL/ML/NL is a low cost, dual axis accelerometer fabricated on a standard, submicron CMOS process. It is a complete sensing system with on-chip mixed signal processing. The MXD7210GL/HL/ML/NL measures acceleration with a full-scale range of ±10 g and a sensitivity of 4%/g @5V. It can measure both dynamic acceleration (e.g. vibration) and static acceleration (e.g. gravity). The MXD7210GL/HL/ML/NL design is based on heat convection and requires no solid proof mass. This eliminates stiction and particle problems associated with competitive devices and provides shock survival greater than 50,000 g, leading to significantly lower failure rate and lower loss due to handling during assembly and at customer field application. Information furnished by MEMSIC is believed to be accurate and reliable. However, no responsibility is assumed by MEMSIC for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of MEMSIC. MXD7210GL/HL/ML/NL FUNCTIONAL BLOCK DIAGRAM The MXD7210GL/HL/ML/NL provides two digital outputs that are set to 50% duty cycle at zero g acceleration. The outputs are digital with duty cycles (ratio of pulse width to period) that are proportional to acceleration. The duty cycle outputs can be directly interfaced to a microprocessor. The typical noise floor is 0.4 mg/ Hz allowing signals below 1milli-g to be resolved at 1 Hz bandwidth. The MXR7210GL/HL/ML/NL is packaged in a hermetically sealed LCC surface mount package (5 mm x 5 mm x 2 mm height) and is operational over a 0°C to 70°C(GL/HL) or a 40°C to +85°C(ML/NL) temperature range. MEMSIC, Inc. 800 Turnpike St., Suite 202, North Andover, MA 01845 Tel: 978.738.0900 Fax: 978.738.0196 www.memsic.com MEMSIC MXD7210GL/HL/ML/NL Page 1 of 10 2003.08.04 MXD7210GL/HL/ML/NL SPECIFICATIONS (Measurements @ 25°C, Acceleration = 0 g unless otherwise noted; VDD = 5.0V www.DataSheet4U.com unless otherwise specified) MXD7210GL/H L Typ. MXD7210ML/N L Typ. Parameter SENSOR INPUT Measurement Range1 Nonlinearity Alignment Error2 Alignment Error Cross Axis Sensitivity3 SENSITIVITY Sensitivity Xout, Yout Sensitivity Xout, Yout Sensitivity Change over Temperature4 ZERO g BIAS LEVEL 0 g Voltage Xout, Yout 0 g Voltage Xout, Yout 0 g Voltage Xout, Yout 0 g Voltage Xout, Yout 0 g Offset vs. Temperature4 NOISE PERFORMANCE Noise Density, rms FREQUENCY RESPONSE 3dB Bandwidth DUTY CYCLE OUTPUT STAGE Output High Voltage Output Low Voltage Current T25 Drift vs. Temperature Rise/Fall Time POWER SUPPLY Operating Voltage Range Quiescent Supply Current Turn-On Time TEMPERATURE RANGE Operating Range Conditions Each Axis Min ±10.0 Max Min. ±10.0 Max. Units g Best fit straight line X Sensor to Y Sensor Each Axis VDD=5.0V VDD=3.0V Delta from 25°C Each Axis VDD=5.0V VDD=5.0V VDD=3.0V VDD=3.0V Delta from 25°C @25°C 0.5 ±1.0 0.01 ±0.5 3.6 3.5 4.0 4.0 4.4 4.5 10 48.8 -0.3 48 -0.5 50.0 0.00 50 0.00 1.5 0.4 19 Vs-0.2 Vs-0.2 0.2 250 -900 -750 200 3.2 100 -600 -900 51.2 0.3 52 0.5 48.8 -0.3 48 -0.5 3.6 3.5 0.5 ±1.0 0.01 ±0.5 4.0 4.0 4.4 4.5 15 50.0 0.00 50 0.00 1.5 0.4 19 51.2 0.3 52 0.5 % of FS degrees degrees % %/g %/g % % g % g mg/°C mg/ 1.0 1.0 Hz Hz V V uA Source or sink, @3.0V-5.0V Supply 0.2 250 -750 200 3.2 100 -600 ppm/°C ns V mA mS 2.7 Level (0g), @5.0V Supply 0 5.25 4.1 2.7 5.25 4.1 +70 -40 +85 °C NOTES 1 2 Guaranteed by measurement of initial offset and sensitivity. Alignment error is specified as the angle between the true and indicated axis of sensitivity. 3 Cross axis sensitivity is the algebraic sum of the alignment and the inherent sensitivity errors. 4 Defined as the output change from ambient to maximum temperature or ambient to minimum temperature. 5 Duty cycle period MEMSIC MXD7210GL/HL/ML/NL Page 2 of 10 2003.08.04 ABSOLUTE MAXIMUM RATINGS* ………………...-0.5 to +7.0V Supply Voltage (VDD) Storage Temperature ……….…………-65°C to +150°C Acceleration ……………………………………..50,000 g *Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; the functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exp.


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