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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MMA7455L датащи(PDF) 7 Page - Freescale Semiconductor, Inc |
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MMA7455L датащи(HTML) 7 Page - Freescale Semiconductor, Inc |
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7 / 35 page  Sensors Freescale Semiconductor 7 MMA7455L Table 3. Operating Characteristics Unless otherwise noted: –40°C < TA < 85°C, 2.4 V < AVDD < 3.6 V, Acceleration = 0g, Loaded output. Characteristic Symbol Min Typ Max Unit Analog Supply Voltage Standby/Operation Mode Enable Bus Mode Digital I/O Pins Supply Voltage(1) Standby/Operation Mode Enable Bus Mode AVDD AVDD DVDD_IO DVDD_IO 2.4 2.4 2.8 0 2.8 0 3.6 3.6 V V V V Supply Current Drain Operation Mode Pulse Detect Function Mode Standby Mode (except data loading and I2C/SPI communication period) IDD IDD IDD — — — 400 400 2.5 490 490 10 μA μA μA Operating Temperature Range TA -40 25 85 °C 0g Output Signal (TA=25°C, AVDD = 2.8 V) ±2g range (25°C) 8-bit GLVL[1:0]= 0 1 ±4g range (25°C) 8-bit GLVL[1:0]= 1 0 ±8g range (25°C) 8-bit GLVL[1:0]= 0 0 ±8g range (25°C) 10-bit -18 -10 -5 -18 0 0 0 0 18 10 5 18 count count count count Sensitivity (TA=25°C, AVDD = 2.8 V) ±2g range (25°C) 8-bit ±4g range (25°C) 8-bit ±8g range (25°C) 8-bit ±8g range (25°C) 10-bit 58 29 14.5 58 64 32 16 64 70 35 17.5 70 count/g count/g count/g count/g Self-Test Output Response Zout ΔSTZ 32 64 83 count Temperature Compensation for Offset TCO ±3.5 ±0.5 +3.5 mg/°C Temperature Sensitivity for Offset TCS ±0.026 ±0.01 +0.026 mg/°C Input High Voltage Input Low Voltage VIH VIL 0.7 x DVDD — — — — 0.35 x DVDD V V Internal Clock Frequency (TA = 25°C, AVDD = 2.8 V) tCLK 140 150 160 kHz SPI Frequency DVDD_IO < 2.4 V DVDD_IO > 2.4 V — — 4 8 — — MHz MHz Bandwidth for Data Measurement (User Selectable) DFBW 0 DFBW 1 — — 62.5 125 — — Hz Hz Output Data Rate Output Data Rate is 125 Hz when 62.5 bandwidth is selected. Output Data rate is 250 Hz when 125 Hz bandwidth is selected. — — 125 250 — — Hz Hz Control Timing Wait Time for I2C/SPI ready after power on Turn On Response Time (Standby to Normal Mode) Turn Off Response Time (Normal to Standby Mode) Self-Test Response Time Sensing Element Resonant Frequency XY Z tsu tru trd tst fGCELLXY fGCELLZ — — — — — — 1 — — — 6.0 3.4 — 20 20 20 — — ms ms ms ms kHz kHz Nonlinearity (2 g range) -1 — +1 %FS Cross Axis Sensitivity -5 — +5 % 1. It is recommended to tie the analog and digital supply voltages together. |
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