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ADS7852YB2KG4 Datasheet(PDF) 4 Page - Texas Instruments |
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ADS7852YB2KG4 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 19 page  ADS7852 SBAS111C 4 Top View TQFP PIN NAME DESCRIPTION 1 AIN0 Analog Input Channel 0 2 AIN1 Analog Input Channel 1 3 AIN2 Analog Input Channel 2 4 AIN3 Analog Input Channel 3 5 AIN4 Analog Input Channel 4 6 AIN5 Analog Input Channel 5 7 AIN6 Analog Input Channel 6 8 AIN7 Analog Input Channel 7 9 AGND Analog Ground, GND = 0V 10 VREF Voltage Reference Input and Output. See Electrical Characteristics table for ranges. Decouple to ground with a 0.1 µF ceramic capacitor and a 2.2 µF tantalum capacitor. 11 DGND Digital Ground, GND = 0V 12 A2 Channel Address. See Channel Selection Table for details. 13 A1 Channel Address. See Channel Selection Table for details. 14 A0 Channel Address. See Channel Selection Table for details. 15 DB11 Data Bit 11 (MSB) 16 DB10 Data Bit 10 17 DB9 Data Bit 9 18 DB8 Data Bit 8 19 DB7 Data Bit 7 20 DB6 Data Bit 6 21 DB5 Data Bit 5 22 DB4 Data Bit 4 23 DB3 Data Bit 3 24 DB2 Data Bit 2 25 DB1 Data Bit 1 26 DB0 Data Bit 0 (LSB) 27 WR Write Input. Active LOW. Use to start a new conversion and to select an analog channel via address inputs A0, A1 and A2 in combination with CS. 28 BUSY BUSY output goes LOW and stays LOW during a conversion. BUSY rises when a conversion is complete. 29 CLK External Clock Input. The clock speed determines the conversion rate by the equation: fCLK = 16 • fSAMPLE. 30 RD Read Input. Active LOW. Use to read the data outputs in combination with CS. Also use (in conjunction with A0 or A1) to place device in power-down mode. 31 CS Chip Select Input. Active LOW. The combination of CS taken LOW and WR taken LOW initiates a new conversion and places the outputs in tri-state mode. 32 VSS Voltage Supply Input. Nominally +5V. Decouple to ground with a 0.1 µF ceramic capacitor and a 10 µF tantalum capacitor. PIN DESCRIPTIONS PIN CONFIGURATION AIN0 AIN1 AIN2 AIN3 AIN4 AIN5 AIN6 AIN7 1 2 3 4 5 6 7 8 24 23 22 21 20 19 18 17 DB2 DB3 DB4 DB5 DB6 DB7 DB8 DB9 ADS7852Y |
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