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MMA6280QT Datasheet(PDF) 3 Page - Freescale Semiconductor, Inc |
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MMA6280QT Datasheet(HTML) 3 Page - Freescale Semiconductor, Inc |
3 / 12 page Sensors Freescale Semiconductor 3 MMA6280QT Table 2. Operating Characteristics Unless otherwise noted: –20°C < TA < 85°C, 2.2 V < VDD < 3.6 V, Acceleration = 0 g, Loaded output(1) 1. For a loaded output, the measurements are observed after an RC filter consisting of a 1.0 kΩ resistor and a 0.1 µF capacitor on VDD-GND. Characteristic Symbol Min Typ Max Unit Operating Range(2) Supply Voltage(3) Supply Current Supply Current at Sleep Mode(4) Operating Temperature Range Acceleration Range, X-Axis, Z-Axis g-Select1 & 2: 00 g-Select1 & 2: 10 g-Select1 & 2: 01 g-Select1 & 2: 11 2. These limits define the range of operation for which the part will meet specification. 3. Within the supply range of 2.2 and 3.6 V, the device operates as a fully calibrated linear accelerometer. Beyond these supply limits the device may operate as a linear device but is not guaranteed to be in calibration. 4. This value is measured with g-Select in 1.5 g mode. VDD IDD IDD TA gFS gFS gFS gFS 2.2 — — –40 — — — — 3.3 500 3 — ±1.5 ±2.0 ±4.0 ±6.0 3.6 800 10 +105 — — — — V µA µA °C g g g g Output Signal Zero-g (TA = 25°C, VDD = 3.3 V)(5) Zero-g(4) X-axis Z-axis Sensitivity (TA = 25°C, VDD = 3.3 V) 1.5 g 2 g 4 g 6 g Sensitivity(4) X-axis Z-axis Bandwidth Response X Z 5. The device can measure both + and – acceleration. With no input acceleration the output is at midsupply. For positive acceleration the output will increase above VDD/2. For negative acceleration, the output will decrease below VDD/2. VOFF VOFF, TA VOFF, TA S1.5g S2g S4g S6g S,TA S,TA f-3dB f-3dB 1.485 ±2.6(6) ±1.0(6) 740 555 277.5 185 ±0.02(6) ±0.01(6) — — 6. These values represent the 10th percentile, not the minimum. 1.65 ±0.6 ±0.8 800 600 300 200 ±0.02 ±0.00 350 150 1.815 ±3.8(7) ±0.8(7) 860 645 322.5 215 ±0.02(7) ±0.01(7) — — 7. These values represent the 90th percentile, not the maximum. V mg/°C mg/°C mV/g mV/g mV/g mV/g %/°C %/°C Hz Hz Noise RMS (0.1 Hz – 1 kHz)(4) Power Spectral Density RMS (0.1 Hz – 1 kHz)(4) nRMS nPSD — — 4.7 350 — — mVrms µg/ Control Timing Power-Up Response Time(8) Enable Response Time(9) Sensing Element Resonant Frequency X Z Internal Sampling Frequency 8. The response time between 10% of full scale VDD input voltage and 90% of the final operating output voltage. 9. The response time between 10% of full scale Sleep Mode input voltage and 90% of the final operating output voltage. tRESPONSE tENABLE fGCELL fGCELL fCLK — — — — — 1.0 0.5 6.0 3.4 11 2.0 2.0 — — — ms ms kHz kHz kHz Output Stage Performance Full-Scale Output Range (IOUT = 30 µA) VFSO VSS+0.25 — VDD–0.25 V Nonlinearity, XOUT, ZOUT NLOUT –1.0 — +1.0 %FSO Cross-Axis Sensitivity(10) 10. A measure of the device’s ability to reject an acceleration applied 90° from the true axis of sensitivity. VXY, XZ, YZ —— 5.0 % Hz |
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