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AD7194 Datasheet(PDF) 11 Page - Analog Devices |
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AD7194 Datasheet(HTML) 11 Page - Analog Devices |
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11 / 55 page  AD7194 Data Sheet Rev. B | Page 10 of 54 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS NOTES 1. NC = NO CONNECT. 2. CONNECT EXPOSED PAD TO AGND. 24 DVDD 23 AVDD 22 DGND 21 AGND 20 AIN16 19 AIN15 18 REFIN1(–) 17 REFIN1(+) 1 2 3 4 5 6 7 8 AIN1/P3 AIN2/P2 AIN3/P1/REFIN2(+) AIN4/P0/REFIN2(–) AINCOM AGND AIN5 AIN6 TOP VIEW (Not to Scale) AD7194 Figure 5. Pin Configuration Table 5. Pin Function Descriptions Pin No. Mnemonic Description 1 AIN1/P3 Analog Input/Digital Output Pin. This pin can function as an analog input pin. When the GP32EN bit is set to 1, the pin functions as a general-purpose output bit referenced between AVDD and AGND. 2 AIN2/P2 Analog Input/Digital Output Pin. This pin can function as an analog input pin. When the GP32EN bit is set to 1, the pin functions as a general-purpose output bit referenced between AVDD and AGND. 3 AIN3/P1/REFIN2(+) Analog Input/Digital Output Pin/Positive Reference Input. This pin functions as an analog input pin. When the GP10EN bit is set to 1, the pin functions as a general-purpose output bit referenced between AVDD and AGND. When the REFSEL bit in the configuration register is set to 1, this pin functions as REFIN2(+). An external reference can be applied between REFIN2(+) and REFIN2(−). REFIN2(+) can lie anywhere between AVDD and AGND + 1 V. 4 AIN4/P0/REFIN2(−) Analog Input/Digital Output Pin/Positive Reference Input. This pin functions as an analog input pin. When the GP10EN bit is set to 1, the pin functions as a general-purpose output bit referenced between AVDD and AGND. When the REFSEL bit in the configuration register is set to 1, this pin functions as REFIN2(−). An external reference can be applied between REFIN2(+) and REFIN2(−). This reference input can lie anywhere between AGND and AVDD − 1 V. 5 AINCOM Analog Input AIN1 to Analog Input AIN16 are referenced to this input when the bit pseudo is set to 1. 6 AGND Analog Ground Reference Point. 7 AIN5 Analog Input Pin. 8 AIN6 Analog Input Pin. 9 AIN7 Analog Input Pin. 10 AIN8 Analog Input Pin. 11 AIN9 Analog Input Pin. 12 AIN10 Analog Input Pin. 13 AIN11 Analog Input Pin. 14 AIN12 Analog Input Pin. 15 AIN13 Analog Input Pin. 16 AIN14 Analog Input Pin. 17 REFIN1(+) Positive Reference Input. An external reference can be applied between REFIN1(+) and REFIN1(−). REFIN1(+) can lie anywhere between AVDD and AGND + 1 V. The nominal reference voltage, (REFIN1(+) − REFIN1(−)), is AVDD, but the part functions with a reference from 1 V to AVDD. 18 REFIN1(−) Negative Reference Input. This reference input can lie anywhere between AGND and AVDD − 1 V. 19 AIN15 Analog Input Pin. 20 AIN16 Analog Input Pin. 21 AGND Analog Ground Reference Point. 22 DGND Digital Ground Reference Point. |
Similar Part No. - AD7194_17 |
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Similar Description - AD7194_17 |
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