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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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AD5522JSVDZ Scheda tecnica(PDF) 19 Page - Analog Devices |
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AD5522JSVDZ Scheda tecnica(HTML) 19 Page - Analog Devices |
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19 / 60 page  AD5522 Rev. A | Page 19 of 60 PIN 1 AD5522 TOP VIEW EXPOSED PAD ON TOP (Not to Scale) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 EXTFOH2 22 AVSS 23 BUSY 24 SCLK 25 CPOL0/SCLK 26 CPOH0/SDI 27 SDI 28 SYNC 29 CPOL1/SYNC 30 DGND 31 CPOH1/SDO SDO 32 33 LOAD 34 DVCC 35 CPOL2/CPO0 36 CPOH2/CPO1 37 CPOL3/CPO2 38 CPOH3/CPO3 39 AVSS 40 EXTFOH3 61 EXTFOH1 62 AVSS 63 MEASOUT3 64 MEASOUT2 65 MEASOUT1 66 MEASOUT0 67 AVSS 68 SYS_FORCE 69 AGND 70 SYS_SENSE 71 REFGND 72 VREF 73 DUTGND 74 AVDD 75 SPI/LVDS 76 CGALM 77 TMPALM 78 RESET 79 AVSS 80 EXTFOH0 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 NOTES: 1. FOR PROPER CONNECTION OFTHE EXPOSED PAD, REFER TO THE PIN CONFIGURATION AND FUNCTION DESCRIPTIONS SECTION OF THIS DATA SHEET. Figure 9. Pin Configuration, Exposed Pad on Top Table 7. Pin Function Descriptions Pin No. Mnemonic Description Exposed pad The exposed pad is electrically connected to AVSS. 1 EXTFOH0 Force Output for High Current Range (Channel 0). Use an external resistor at this pin for current ranges up to ±80 mA. For more information, see the Current Range Selection section. 2, 14, 19, 42, 59 AVSS Negative Analog Supply Voltage. 3 RESET Digital Reset Input. This active low, level sensitive input resets all internal nodes on the device to their power- on reset values. 4 TMPALM Open-Drain Output for Temperature Alarm. This latched, active low, open-drain output flags a temperature alarm to indicate that the junction temperature has exceeded the default temperature setting (130°C) or the user programmed temperature setting. Two flags in the alarm status register (one latched, one unlatched) indicate whether the temperature has dropped below 130°C or remains above 130°C. User action is required to clear this latched alarm flag by writing to the clear bit (Bit 6) in any of the PMU registers. 5 CGALM Open-Drain Output for Guard and Clamp Alarms. This open-drain pin provides shared alarm information about the guard amplifier and clamp circuitry. By default, this output pin is disabled. The system control register allows the user to enable this function and to set the open-drain output as a latched output. The user can also choose to enable alarms for the guard amplifier, the clamp circuitry, or both. When this pin flags an alarm, the origins of the alarm can be determined by reading back the alarm status register. Two flags per channel in this word (one latched, one unlatched) indicate which function caused the alarm and whether the alarm is still present. |
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