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ADS8634SRGER Datenblatt(PDF) 9 Page - Texas Instruments |
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ADS8634SRGER Datenblatt(HTML) 9 Page - Texas Instruments |
9 / 76 page AVDD AGND AGND NC AINGND AIN7 DIN SCLK CS HVSS HVDD AIN0 1 2 3 4 5 6 18 17 16 15 14 13 ThermalPad (BottomSide) ADS8634 ADS8638 www.ti.com SBAS541A – MAY 2011 – REVISED AUGUST 2011 RGE PACKAGE 4mm × 4mm QFN-24 (TOP VIEW) Figure 2. ADS8638 Pin Configuration ADS8638 PIN ASSIGNMENTS PIN NUMBER NAME FUNCTION DESCRIPTION 1 AVDD Analog power supply Analog power supply 2, 3 AGND Analog power supply Analog ground This pin is not internally connected; do not float this pin. 4 NC — It is recommended to connect this pin to AGND. 5 AINGND Input Common for all analog input channels; acts as ground sense terminal 6 AIN7 Analog input Analog input channel 7 7 AIN6 Analog input Analog input channel 6 8 AIN5 Analog input Analog input channel 5 9 AIN4 Analog input Analog input channel 4 10 AIN3 Analog input Analog input channel 3 11 AIN2 Analog input Analog input channel 2 12 AIN1 Analog input Analog input channel 1 13 AIN0 Analog input Analog input channel 0 14 HVDD High-voltage power supply High-voltage positive supply for multiplexer channels 15 HVSS High-voltage power supply High-voltage negative supply for multiplexer channels 16 CS Digital input Chip select input 17 SCLK Digital input Serial clock input 18 DIN Digital input Serial data input 19 DOUT Digital output Serial data output 20 DGND Digital power supply Digital ground 21 DVDD Digital power supply Digital I/O supply Digital output Active high, output indicating alarm (programmed as an output pin) 22 AL_PD Active low, asynchronous power-down Digital input (programmed as an input pin, default condition) Reference ground input to device when an external reference is selected. 23 REFGND Analog input This pin acts as reference decoupling ground terminal when an internal reference is selected. Reference input to device when an external reference is selected. 24 REF Analog input This pin acts as reference decoupling terminal when an internal reference is selected. Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Link(s): ADS8634 ADS8638 |
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