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ADS1205 Arkusz danych(PDF) 6 Page - Texas Instruments |
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ADS1205 Arkusz danych(HTML) 6 Page - Texas Instruments |
6 / 30 page ADS1205 SBAS312B − JANUARY 2005 − REVISED AUGUST 2007 www.ti.com 6 PIN ASSIGNMENT RGE PACKAGE QFN−24 (TOP VIEW) REFIN B AGND AV DD AV DD AGND CLKSEL REFIN A AGND AV DD AV DD REFOUT AGND 1 2 3 4 5 6 18 17 16 15 14 13 ADS1205 (1) (1) The thermal pad is internally connected to the substrate. This pad can be connected to the analog ground or left floating. Keep the thermal pad separate from the digital ground, if possible. (2) NC = No Connection. Terminal Functions TERMINAL NAME NO. I/O DESCRIPTION REFIN B 1 I Reference voltage input of channel B: pin for external reference voltage AGND 2, 5, 13, 17 Analog ground AVDD 3, 4, 15, 16 Analog power supply; nominal 5V CLKSEL 6 I Clock select between internal clock (CLKSEL = 1) or external clock (CLKSEL = 0) CLKIN 7 I External clock input BVDD 8 Digital interface power supply; from 2.7V to 5.5V BGND 9 Interface ground CLKOUT 10 O System clock output OUT B 11 O Bit stream from channel B modulator OUT A 12 O Bit stream from channel A modulator REFOUT 14 O Reference voltage output: output pin of the internal reference source; nominal 2.5V REFIN A 18 I Reference voltage input of channel A: pin for external reference voltage NC 19, 24 No connection; this pin is left unconnected CH A+ 20 I Analog input of channel A: noninverting input CH A− 21 I Analog input of channel A: inverting input CH B− 22 I Analog input of channel B: inverting input CH B+ 23 I Analog input of channel B: noninverting input |
Podobny numer części - ADS1205_14 |
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Podobny opis - ADS1205_14 |
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