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ADS7810UB Datasheet(PDF) 7 Page - Texas Instruments |
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ADS7810UB Datasheet(HTML) 7 Page - Texas Instruments |
7 / 20 page ADS7810 www.ti.com SBAS014A – MARCH 1992 – REVISED SEPTEMBER 2010 PIN ASSIGNMENTS (continued) PIN DIGITAL DESCRIPTION I/O NO. NAME Data bit 2. Hi-Z state when CS is high, or when R/C is low, or when a conversion is in 16 D2 O progress. Data bit 1. Hi-Z state when CS is high, or when R/C is low, or when a conversion is in 17 D1 O progress. Data bit 0. Least significant bit (LSB) of conversion results. Hi-Z state when CS is high, 18 D0 (LSB) O or when R/C is low, or when a conversion is in progress. 19 NC Not internally connected. 20 +VANA Analog positive supply input. Nominally +5V. Connect directly to pins 21, 27, and 28. 21 +VDIG Digital supply input. Nominally +5V. Connect directly to pins 20, 27, and 28. 22 DGND Digital ground. Read/Convert input. With CS low, a falling edge on R/C puts the internal sample/hold into 23 R/C I the hold state and starts a conversion. With CS low and no conversion in progress, a rising edge on R/C enables the output data bits. Chip select. With R/C low, a falling edge on CS will initiate a conversion. With R/C high 24 CS I and no conversion in progress, a falling edge on CS will enable the output data bits. Busy output. Falls when a conversion is started, and remains low until the conversion is completed and the data are latched into the output register. With CS low and R/C high, 25 BUSY O output data will be valid when BUSY rises, so that the rising edge can be used to latch the data. Analog negative supply input. Nominally –5V. Decouple to ground with 0.1mF ceramic 26 –VANA and 10vF tantalum capacitors. 27 +VDIG Digital supply input. Nominally +5V. Connect directly to pins 20, 21, and 28. Analog positive supply input. Nominally +5V. Connect directly to pins 20, 21, and 27, and 28 +VANA decouple to ground with 0.1mF ceramic and 10mF tantalum capacitors. Copyright © 1992–2010, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Link(s): ADS7810 |
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