MMA7260Q Freescale Semiconductor, MMA7260Q Datasheet
MMA7260Q
Specifications of MMA7260Q
Available stocks
Related parts for MMA7260Q
MMA7260Q Summary of contents
Page 1
... Technical Data ±1. Three Axis Low-g Micromachined Accelerometer The MMA7260QT low cost capacitive micromachined accelerometer features signal conditioning, a 1-pole low pass filter, temperature compensation and g-Select which allows for the selection among 4 sensitivities. Zero-g offset full scale span and filter cut-off are factory set and require no external devices ...
Page 2
... Although the Freescale accelerometer contains internal 2000 volts ESD protection circuitry, extra precaution must be taken by the user to protect the chip from ESD. A charge of over 2000 volts can accumulate on the human body or associated test equipment. A charge of this magnitude can MMA7260QT Clock Oscillator ...
Page 3
... V –0.25 DD –1.0 — +1.0 %FSO — — 5.0 — — — 2.2. Consult DD MMA7260QT V ° -GND. 3 ...
Page 4
... Acceleration Figure 3. Simplified Transducer Physical Model MMA7260QT 4 PRINCIPLE OF OPERATION g-Select The g-Select feature allows for the selection among 4 sensitivities present in the device. Depending on the logic input placed on pins 1 and 2, the device internal gain will be changed allowing it to function with a 1 ...
Page 5
... This will prevent aliasing errors. 9. PCB layout should not run traces or vias under the 0.1 μF QFN part. This could lead to ground shorting to the accelerometer flag. POWER SUPPLY Accelerometer to Microcontroller line has the ability to reach 2 < 0.1 DD pin. Rise DD Figure MMA7260QT ...
Page 6
... QFN Package Top View X @ +1g = 2.45 V OUT 1.65 V OUT 1.65 V OUT 1.65 V OUT Y @ +1g = 2.45 V OUT 1.65 V OUT * When positioned as shown, the Earth’s gravity will result in a positive 1g output. MMA7260QT 6 DYNAMIC ACCELERATION + STATIC ACCELERATION X @ -1g = 0.85 V OUT 1.65 V OUT ...
Page 7
... All dimensions are in mm. Figure 7. PCB Footprint for 16-Lead QFN, 6x6 mm for Consumer Grade Products and Applications Do not solder down flag and 4 corner ground pads on the package for consumer application Do not place any top metal patterns or via structures beneath the package MMA7260QT 7 ...
Page 8
... Signal traces with 0.1mm width and Package Pad 0.50 mm 0.55 mm Cu: 0.55 x 0.50 mm sq. Figure 8. NSMD Solder Mask Design Guidelines MMA7260QT 8 PCB DESIGN GUIDELINES min. 0.5mm length for all PCB land pad near package are recommended as shown in Figure 9 ...
Page 9
... Sensors Freescale Semiconductor PACKAGE DIMENSIONS CASE 1622-02 ISSUE B 16-LEAD QFN PAGE MMA7260QT 9 ...
Page 10
... MMA7260QT 10 PACKAGE DIMENSIONS CASE 1622-02 ISSUE B 16-LEAD QFN PAGE Sensors Freescale Semiconductor ...
Page 11
... Sensors Freescale Semiconductor PACKAGE DIMENSIONS CASE 1622-02 ISSUE B 16-LEAD QFN PAGE MMA7260QT 11 ...
Page 12
... RoHS-compliant and/or Pb-free versions of Freescale products have the functionality and electrical characteristics of their non-RoHS-compliant and/or non-Pb-free counterparts. For further information, see http:/www.freescale.com or contact your Freescale sales representative. For information on Freescale’s Environmental Products program http://www.freescale.com/epp. MMA7260QT Rev. 5 03/2008 Information in this document is provided solely to enable system and software implementers to use Freescale Semiconductor products ...