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AD5522JSVDZ 数据表(PDF) 21 Page - Analog Devices |
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AD5522JSVDZ 数据表(HTML) 21 Page - Analog Devices |
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21 / 65 page  AD5522 Data Sheet Rev. E | Page 20 of 64 Pin No. Mnemonic Description 6 SPI/LVDS Interface Select Pin. Logic low selects SPI-compatible interface mode; logic high selects LVDS interface mode. This pin has a pull-down current source (~350 μA). In LVDS interface mode, the CPOHx and CPOLx pins default to differential interface pins. 7, 21, 40, 61, 80 AVDD Positive Analog Supply Voltage. 8 DUTGND DUT Voltage Sense Input (Low Sense). By default, this input is shared among all four PMU channels. If a DUTGND input is required for each channel, the user can configure the GUARDINx/DUTGNDx pins as DUTGND inputs for each PMU channel. 9 VREF Reference Input for DAC Channels. 5 V for specified performance. 10 REFGND Accurate Analog Reference Input Ground. 11 SYS_SENSE External Sense Signal Output. This pin enables the connection of the system PMU. 12, 30, 31, 70, 71 AGND Analog Ground. These pins are the reference points for the analog supplies and the measure circuitry. 13 SYS_FORCE External Force Signal Input. This pin enables the connection of the system PMU. 15 MEASOUT0 Multiplexed DUT Voltage, Current Sense Output, Temperature Sensor Voltage for Channel 0. This pin is referenced to AGND. 16 MEASOUT1 Multiplexed DUT Voltage, Current Sense Output, Temperature Sensor Voltage for Channel 1. This pin is referenced to AGND. 17 MEASOUT2 Multiplexed DUT Voltage, Current Sense Output, Temperature Sensor Voltage for Channel 2. This pin is referenced to AGND. 18 MEASOUT3 Multiplexed DUT Voltage, Current Sense Output, Temperature Sensor Voltage for Channel 3. This pin is referenced to AGND. 20 EXTFOH1 Force Output for High Current Range (Channel 1). Use an external resistor at this pin for current ranges up to ±80 mA. For more information, see the Current Range Selection section. 22 CFF1 External Capacitor for Channel 1. This pin optimizes the stability and settling time performance of the force amplifier when in force voltage mode. See the Compensation Capacitors section. 23 CCOMP1 Compensation Capacitor Input for Channel 1. See the Compensation Capacitors section. 24 EXTMEASIH1 Sense Input (High Sense) for High Current Range (Channel 1). 25 EXTMEASIL1 Sense Input (Low Sense) for High Current Range (Channel 1). 26 FOH1 Force Output for Internal Current Ranges (Channel 1). 27 GUARD1 Guard Output Drive for Channel 1. 28 GUARDIN1/ DUTGND1 Guard Amplifier Input for Channel 1/DUTGND Input for Channel 1. This dual function pin is configured via the serial interface. The default function at power-on is GUARDIN1. If this pin is configured as a DUTGND input for the channel, the input to the guard amplifier is internally connected to MEASVH1. For more information, see the Device Under Test Ground (DUTGND) section and the Guard Amplifier section. 29 MEASVH1 DUT Voltage Sense Input (High Sense) for Channel 1. 32 MEASVH3 DUT Voltage Sense Input (High Sense) for Channel 3. 33 GUARDIN3/ DUTGND3 Guard Amplifier Input for Channel 3/DUTGND Input for Channel 3. This dual function pin is configured via the serial interface. The default function at power-on is GUARDIN3. If this pin is configured as a DUTGND input for the channel, the input to the guard amplifier is internally connected to MEASVH3. For more information, see the Device Under Test Ground (DUTGND) section and the Guard Amplifier section. 34 GUARD3 Guard Output Drive for Channel 3. 35 FOH3 Force Output for Internal Current Ranges (Channel 3). 36 EXTMEASIL3 Sense Input (Low Sense) for High Current Range (Channel 3). 37 EXTMEASIH3 Sense Input (High Sense) for High Current Range (Channel 3). 38 CCOMP3 Compensation Capacitor Input for Channel 3. See the Compensation Capacitors section. 39 CFF3 External Capacitor for Channel 3. This pin optimizes the stability and settling time performance of the force amplifier when in force voltage mode. See the Compensation Capacitors section. 41 EXTFOH3 Force Output for High Current Range (Channel 3). Use an external resistor at this pin for current ranges up to ±80 mA. For more information, see the Current Range Selection section. 43 CPOH3/CPO3 Comparator Output High (Channel 3) for SPI Interface/Comparator Output Window (Channel 3) for LVDS Interface. 44 CPOL3/CPO2 Comparator Output Low (Channel 3) for SPI Interface/Comparator Output Window (Channel 2) for LVDS Interface. 45 CPOH2/CPO1 Comparator Output High (Channel 2) for SPI Interface/Comparator Output Window (Channel 1) for LVDS Interface. |
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