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ADS8329 Datasheet(PDF) 10 Page - Texas Instruments |
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ADS8329 Datasheet(HTML) 10 Page - Texas Instruments |
10 / 40 page www.ti.com ADS8329 ADS8330 SLAS516 – DECEMBER 2006 ADS8329 Terminal Functions NO. NAME I/O DESCRIPTION QFN AGND 15 – Analog ground BDGND 8 – Interface ground CONVST 3 I Freezes sample and hold, starts conversion with next rising edge of internal clock Status output. If programmed as EOC, this pin is low (default) when a conversion is in progress. If programmed as an interrupt (INT), this pin is low for a preprogrammed duration EOC/ INT/ CDI 4 O after the end of conversion and a valid data is to be output. The polarity of EOC or INT is programmable. This pin can also be used as a chain data input when the device is operated in chain mode. 5 I Frame sync signal for TMS320 DSP serial interface or chip select input for SPI interface slave FS/CS select (SS-). +IN 13 I Non inverting input -IN 14 I Inverting input, usually connected to ground NC 2 – No connection. REF+ 1 I External reference input. REF- 16 I Connect to AGND through individual via. RESERVED 12 I Connect to AGND or +VA SCLK 9 I Clock for serial interface SDI 6 I Serial data in SDO 7 O Serial data out +VA 11 Analog supply, +2.7 V to +5.5 VDC. +VBD 10 Interface supply ADS8330 Terminal Functions NO. NAME I/O DESCRIPTION QFN AGND 15 – Analog ground BDGND 8 – Interface ground COM 14 I Common inverting input, usually connected to ground CONVST 3 I Freezes sample and hold, starts conversion with next rising edge of internal clock Status output. If programmed as EOC, this pin is low (default) when a conversion is in progress. If programmed as an interrupt (INT), this pin is low for a preprogrammed duration EOC/ INT/ CDI 4 O after the end of conversion and a valid data is to be output. The polarity of EOC or INT is programmable. This pin can also be used as a chain data input when the device is operated in chain mode. FS/CS 5 I Frame sync signal for TMS320 DSP serial interface or chip select input for SPI interface +IN1 12 I Second noninverting input. +IN0 13 I First noninverting input NC 2 – No connection. REF+ 1 I External reference input. REF- 16 I Connect to AGND through individual via. SCLK 9 I Clock for serial interface SDI 6 I Serial data in (conversion start and reset possible) SDO 7 O Serial data out +VA 11 Analog supply, +2.7 V to +5.5 VDC. +VBD 10 Interface supply 10 Submit Documentation Feedback |
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