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ADS1259QPWRQ1 Datasheet(PDF) 3 Page - Texas Instruments |
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ADS1259QPWRQ1 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 16 page 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 AINP AINN RESETPWDN / START SYNCOUT CS SCLK DIN DOUT DRDY AVDD AVSS REFN REFP REFOUT DVDD DGND BYPASS XTAL2 XTAL1/CLKIN ADS1259-Q1 www.ti.com SLASE20 – MARCH 2014 5 Terminal Configuration and Functions 20-Terminal TSSOP PW Package (Top View) Terminal Functions TERMINAL TYPE DESCRIPTION NO. NAME 1 AINP Analog input Positive analog input 2 AINN Analog input Negative analog input 3 RESET/PWDN Digital input Reset or power down; reset is active-low; hold low for power down. 4 START Digital input Start conversions, active-high 5 SYNCOUT Digital output Sync clock output (f(CLK) / 8) 6 CS Digital input SPI chip-select, active-low 7 SCLK Digital input SPI clock input 8 DIN Digital input SPI data input 9 DOUT Digital output SPI data output 10 DRDY Digital output Data-ready output, active-low Internal oscillator: DGND 11 XTAL1/CLKIN Digital input External clock: clock input Crystal oscillator: external crystal1 12 XTAL2 Digital External crystal2, otherwise no connection 13 BYPASS Analog Core voltage bypass. Connect a 1-µF capacitor to DGND. 14 DGND Digital Digital ground 15 DVDD Digital Digital power supply 16 REFOUT Analog output Positive internal reference output. Connect a 1-µF capacitor, CREFOUT, to AVSS. 17 REFP Analog input Positive reference input. Connect a 1-µF capacitor, CREFIN, to REFN. (1) 18 REFN Analog input Negative reference input(1) 19 AVSS Analog Negative analog power supply and negative internal reference output 20 AVDD Analog Positive analog power supply (1) Leave unused reference inputs unconnected or tie to AVDD. Copyright © 2014, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: ADS1259-Q1 |
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