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ADS1217IPFBR Arkusz danych(PDF) 6 Page - Texas Instruments |
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ADS1217IPFBR Arkusz danych(HTML) 6 Page - Texas Instruments |
6 / 33 page ADS1217 6 SBAS260C www.ti.com PIN CONFIGURATION PIN NUMBER NAME DESCRIPTION 1AVDD Analog Power Supply 2 AGND Analog Ground 3AIN0 Analog Input 0 4AIN1 Analog Input 1 5AIN2 Analog Input 2 6AIN3 Analog Input 3 7AIN4 Analog Input 4 8AIN5 Analog Input 5 9AIN6 Analog Input 6 10 AIN7 Analog Input 7 11 AINCOM Analog Input Common 12 AGND Analog Ground 13 AVDD Analog Power Supply 14 VRCAP VREFOUT Bypass Capacitor 15 IDAC1 Current DAC1 Output 16 IDAC2 Current DAC2 Output 17 RDAC Current DAC Resistor 18-22 DGND Digital Ground 23 BUFEN Buffer Enable Input 24 RESET Active LOW, resets the entire chip. PIN DESCRIPTIONS PIN NUMBER NAME DESCRIPTION 24 23 22 21 20 19 18 17 16 15 14 13 RESET BUFEN DGND DGND DGND DGND DGND R DAC IDAC2 IDAC1 V RCAP AV DD 37 38 39 40 41 42 43 44 45 46 47 48 D0 D1 D2 D3 D4 D5 D6 D7 AGND V REFOUT V REF+ V REF– 36 35 34 33 32 31 30 29 28 27 26 123456789 10 11 25 12 ADS1217 Top View TQFP 25 XIN Clock Input 26 XOUT Clock Output, used with crystal or resonator. 27 PDWN Active LOW. Power Down. The power-down function shuts down the analog and digital circuits. 28 POL Serial Clock Polarity Input 29 DSYNC Active LOW, Synchronization Control Input 30 DGND Digital Ground 31 DVDD Digital Power Supply 32 DRDY Active LOW, Data Ready Output 33 CS Active LOW, Chip Select Input 34 SCLK Serial Clock, Schmitt Trigger 35 DIN Serial Data Input, Schmitt Trigger 36 DOUT Serial Data Output 37-44 D0-D7 Digital I/O 0-7 45 AGND Analog Ground 46 VREFOUT Voltage Reference Output 47 VREF+ Positive Differential Reference Input 48 VREF– Negative Differential Reference Input |
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