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ADS8472IBRGZTG4 Datasheet(PDF) 8 Page - Burr-Brown (TI) |
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ADS8472IBRGZTG4 Datasheet(HTML) 8 Page - Burr-Brown (TI) |
8 / 30 page www.ti.com PIN ASSIGNMENTS +VBD BDGND BYTE CONVST RD CS +VA AGND AGND +VA REFM REFM RGZ PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 9 10 11 12 36 35 34 33 32 31 30 29 28 27 26 25 48 47 46 45 44 43 42 41 40 39 38 37 13 14 15 16 17 18 19 20 21 22 23 24 +VBD DB8 DB9 DB10 DB11 DB12 DB13 DB14 DB15 AGND AGND +VA NC − No internal connection NOTE: The package thermal pad must be soldered to the printed circuit board for thermal and mechanical performance. ADS8472 SLAS514 – DECEMBER 2006 TERMINAL FUNCTIONS NAME NO I/O DESCRIPTION 8, 9, 17, 20, AGND 23, 24, 26, – Analog ground 27 BDGND 2, 37 – Digital ground for bus interface digital supply BUSY 48 O Status output. High when a conversion is in progress. Byte select input. Used for 8-bit bus reading. BYTE 3 I 0: No fold back 1: Low byte D[9:2] of the 16 most significant bits is folded back to high byte of the 16 most significant pins DB[17:10]. CONVST 4 I Convert start. The falling edge of this input ends the acquisition period and starts the hold period. CS 6 I Chip select. The falling edge of this input starts the acquisition period. 8-BIT BUS 16-BIT BUS Data Bus BYTE = 0 BYTE = 1 BYTE = 0 DB15 28 O D15 (MSB) D7 D15(MSB) DB14 29 O D14 D6 D14 DB13 30 O D13 D5 D13 DB12 31 O D12 D4 D12 DB11 32 O D11 D3 D11 DB10 33 O D10 D2 D10 DB9 34 O D9 All ones D9 DB8 35 O D8 All ones D8 DB7 38 O D7 All ones D7 DB6 39 O D6 All ones D6 DB5 40 O D5 All ones D5 DB4 41 O D4 All ones D4 DB3 42 O D3 All ones D3 8 Submit Documentation Feedback |
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