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ADS8517 Arkusz danych(PDF) 5 Page - Texas Instruments |
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ADS8517 Arkusz danych(HTML) 5 Page - Texas Instruments |
5 / 42 page PIN CONFIGURATION V DIG V ANA BUSY CS R/C BYTE TAG SDATA DATACLK D0 D1 D2 R1 IN AGND1 CAP REF AGND2 D7 D6 D5 D4 D3 DGND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 ADS8517 R2 IN SB/BTC EXT/INT REFD PWRD ADS8517 www.ti.com ................................................................................................................................................. SLAS527A – SEPTEMBER 2008 – REVISED JUNE 2009 DW, PW PACKAGES SO-28, TSSOP-28 (TOP VIEW) PIN ASSIGNMENTS PIN DIGITAL NAME NO. I/O DESCRIPTION R1IN 1 Analog Input. AGND1 2 Analog sense ground. Used internally as ground reference point. Minimal current flow R2IN 3 Analog Input. CAP 4 Reference buffer output. 2.2- µF tantalum capacitor to ground. Reference input/output. Outputs internal 2.5-V reference. Can also be driven by external system REF 5 reference. In both cases, bypass to ground with a 2.2- µF tantalum capacitor. AGND2 6 Analog ground Output mode select. Selects straight binary or binary twos complement for output data format. If SB/BTC 7 I high, data are output in a straight binary format. If low, data are output in a binary twos complement format. External/internal data select. Selects external/internal data clock for transmitting data. If high, data is output synchronized to the clock input on DATACLK. If low, a convert command initiates EXT/INT 8 I the transmission of the data from the previous conversion, along with 16-clock pulses output on DATACLK. Data bit 7 if BYTE is high. Data bit 15 (MSB) if BYTE is low. High-Z when CS is high and/or R/C D7 9 O is low. Leave unconnected when using serial output. D6 10 O Data bit 6 if BYTE is high. Data bit 14 if BYTE is low. High-Z when CS is high and/or R/C is low. D5 11 O Data bit 5 if BYTE is high. Data bit 13 if BYTE is low. High-Z when CS is high and/or R/C is low. D4 12 O Data bit 4 if BYTE is high. Data bit 12 if BYTE is low. High-Z when CS is high and/or R/C is low. D3 13 O Data bit 3 if BYTE is high. Data bit 11 if BYTE is low. High-Z when CS is high and/or R/C is low. DGND 14 Digital ground D2 15 O Data bit 2 if BYTE is high. Data bit 10 if BYTE is low. High-Z when CS is high and/or R/C is low. D1 16 O Data bit 1 if BYTE is high. Data bit 9 if BYTE is low. High-Z when CS is high and/or R/C is low. Data bit 0 (LSB) if BYTE is high. Data bit 8 if BYTE is low. High-Z when CS is high and/or R/C is D0 17 O low. Copyright © 2008–2009, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): ADS8517 |
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