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AD7142ACPZ-500RL71 Arkusz danych(PDF) 10 Page - Analog Devices |
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AD7142ACPZ-500RL71 Arkusz danych(HTML) 10 Page - Analog Devices |
10 / 73 page AD7142 Rev. A | Page 9 of 72 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS PIN 1 INDICATOR 1 CIN3 2 CIN4 3 CIN5 4 CIN6 5 CIN7 6 CIN8 7 CIN9 8 CIN10 24 CS 23 SCLK 22 SDI 21 SDO 20 VDRIVE 19 DGND2 18 DGND1 17 DVCC TOP VIEW AD7142 Figure 6. AD7142 Pin Configuration PIN 1 INDICATOR 1 CIN3 2 CIN4 3 CIN5 4 CIN6 5 CIN7 6 CIN8 7 CIN9 8 CIN10 24 ADD1 23 SCLK 22 ADD0 21 SDA 20 VDRIVE 19 DGND2 18 DGND1 17 DVCC TOP VIEW (Not to Scale) AD7142-1 Figure 7. AD7142-1 Pin Configuration Table 7. Pin Function Descriptions Pin No. Mnemonic Description 1 CIN3 Capacitance Sensor Input. 2 CIN4 Capacitance Sensor Input. 3 CIN5 Capacitance Sensor Input. 4 CIN6 Capacitance Sensor Input. 5 CIN7 Capacitance Sensor Input. 6 CIN8 Capacitance Sensor Input. 7 CIN9 Capacitance Sensor Input. 8 CIN10 Capacitance Sensor Input. 9 CIN11 Capacitance Sensor Input. 10 CIN12 Capacitance Sensor Input. 11 CIN13 Capacitance Sensor Input. 12 CSHIELD CDC Shield Potential Output. Requires 10 nF capacitor to ground. Connect to external shield. 13 AVCC CDC Supply Voltage. 14 AGND Analog Ground Reference Point for All CDC Circuitry. Tie to analog ground plane. 15 SRC CDC Excitation Source Output. 16 SRC Inverted Excitation Source Output. 17 DVCC Digital Core Supply Voltage. 18 DGND1 Digital Ground. 19 DGND2 Digital Ground. 20 VDRIVE Serial Interface Operating Voltage Supply. 21 SDO (AD7142) SPI Serial Data Output. SDA (AD7142-1) I2C Serial Data Input/Output. SDA requires pull-up resistor. 22 SDI (AD7142) SPI Serial Data Input. ADD0 (AD7142-1) I2C Address Bit 0. 23 SCLK Clock Input for Serial Interface. 24 CS (AD7142) SPI Chip Select Signal. ADD1 (AD7142-1) I2C Address Bit 1. 25 INT General-Purpose Open-Drain Interrupt Output. Programmable polarity; requires pull-up resistor. 26 GPIO Programmable GPIO. 27 TEST Factory Test Pin. Tie to ground. 28 VREF+ CDC Positive Reference Input. Normally tied to analog power. 29 VREF− CDC Negative Reference Input. Tie to analog ground. 30 CIN0 Capacitance Sensor Input. 31 CIN1 Capacitance Sensor Input. 32 CIN2 Capacitance Sensor Input. |
Podobny numer części - AD7142ACPZ-500RL71 |
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Podobny opis - AD7142ACPZ-500RL71 |
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