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AD8284 Fiches technique(PDF) 8 Page - Analog Devices |
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AD8284 Fiches technique(HTML) 8 Page - Analog Devices |
8 / 28 page AD8284 Data Sheet Rev. D | Page 8 of 28 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Figure 3. Pin Configuration Table 6. Pin Function Descriptions Pin No. Mnemonic Description 1 NC No Connection. Tie NC to any potential. 2 SFLAG Saturation Flag. 3 PDWN Full Power-Down. A logic high on PDWN overrides the SPI and powers down the part; a logic low allows selection through the SPI. 4 DVDD18 1.8 V Digital Supply. 5 SCLK Serial Clock. 6 CS Chip Select. 7 SDI Serial Data Input. 8 SDO Serial Data Output. 9 AUX Auxiliary Channel. A logic high on AUX switches the AUX channel to ADC (INADC+/INADC−). 10 MUX[0] Digital Control for Mux Channel Selection. 11 MUX[1] Digital Control for Mux Channel Selection. 12 ZSEL Input Impedance Select. A logic high on ZSEL overrides the SPI and sets the input impedance to 200 kΩ; a logic low allows selection through the SPI. 13 TEST1 Test. Do not use the TEST1 pin; tie TEST1 to ground. 14 TEST2 Test. Do not use the TEST2 pin; tie TEST2 to ground. 15 DVDD33SPI 3.3 V Digital Supply, SPI Port. 16 NC No Connection. Tie NC to any potential. 17 NC No Connection. Tie NC to any potential. 18 AVDD18 1.8 V Analog Supply. 19 AVDD33 3.3 V Analog Supply. 20 INA+ Positive Mux Analog Input for Channel A. 21 INA− Negative Mux Analog Input for Channel A. 22 INB+ Positive Mux Analog Input for Channel B. 23 INB− Negative Mux Analog Input for Channel B. PIN 1 AD8284 TOP VIEW (Not to Scale) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 NC SFLAG PDWN DVDD18 SCLK SDI SDO CS AUX MUX[0] MUX[1] ZSEL TEST1 TEST2 DVDD33SPI NC NC AGND AVDD18ADC TEST3 ANOUT APOUT RBIAS VREF BAND AVDD33REF DVDD33CLK CLK– CLK+ DVDD18CLK TEST4 NC NOTES 1. TIE THE EXPOSED PAD ON THE BOTTOM SIDE TO THE ANALOG GROUND PLANE. 2. NC = NO CONNECTION. TIE NC TO ANY POTENTIAL. |
Numéro de pièce similaire - AD8284 |
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Description similaire - AD8284 |
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