Zakładka z wyszukiwarką danych komponentów |
|
ADXL350BCEZ-RL Arkusz danych(PDF) 15 Page - Analog Devices |
|
ADXL350BCEZ-RL Arkusz danych(HTML) 15 Page - Analog Devices |
15 / 36 page Data Sheet ADXL350 Rev. 0 | Page 15 of 36 POWER SAVINGS Power Modes The ADXL350 automatically modulates its power consumption in proportion to its output data rate, as outlined in Table 7. If additional power savings is desired, a lower power mode is available. In this mode, the internal sampling rate is reduced, allowing for power savings in the 12.5 Hz to 400 Hz data rate range but at the expense of slightly greater noise. To enter lower power mode, set the LOW_POWER bit (Bit 4) in the BW_RATE register (Address 0x2C). The current consumption in low power mode is shown in Table 8 for cases where there is an advantage for using low power mode. The current consump- tion values shown in Table 7 and Table 8 are for a VS of 2.5 V. Current scales linearly with VS. Table 7. Current Consumption vs. Data Rate (TA = 25°C, VS = 2.5 V, VDDI/O= 1.8 V) Output Data Rate (Hz) Bandwidth (Hz) Rate Code I DD (µA) 3200 1600 1111 145 1600 800 1110 100 800 400 1101 145 400 200 1100 145 200 100 1011 145 100 50 1010 145 50 25 1001 100 25 12.5 1000 65 12.5 6.25 0111 55 6.25 3.125 0110 40 Table 8. Current Consumption vs. Data Rate, Low Power Mode (TA = 25°C, VS = 2.5 V, VDDI/O= 1.8 V) Output Data Rate (Hz) Bandwidth (Hz) Rate Code I DD (µA) 400 200 1100 100 200 100 1011 65 100 50 1010 55 50 25 1001 50 25 12.5 1000 40 12.5 6.25 0111 40 Auto Sleep Mode Additional power can be saved if the ADXL350 automatically switches to sleep mode during periods of inactivity. To enable this feature, set the THRESH_INACT register (Address 0x25) and the TIME_INACT register (Address 0x26) each to a value that signifies inactivity (the appropriate value depends on the application), and then set the AUTO_SLEEP bit and the link bit in the POWER_CTL register (Address 0x2D). Current consumption at the sub-8 Hz data rates used in this mode is typically 40 µA for a VS of 2.5 V. Standby Mode For even lower power operation, standby mode can be used. In standby mode, current consumption is reduced to 0.1 µA (typical). In this mode, no measurements are made. Standby mode is entered by clearing the measure bit (Bit 3) in the POWER_CTL register (Address 0x2D). Placing the device into standby mode preserves the contents of FIFO. |
Podobny numer części - ADXL350BCEZ-RL |
|
Podobny opis - ADXL350BCEZ-RL |
|
|
Link URL |
Polityka prywatności |
ALLDATASHEET.PL |
Czy Alldatasheet okazała się pomocna? [ DONATE ] |
O Alldatasheet | Reklama | Kontakt | Polityka prywatności | Linki | Lista producentów All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |