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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ADS1258IPHPREP датащи(PDF) 6 Page - Texas Instruments |
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ADS1258IPHPREP датащи(HTML) 6 Page - Texas Instruments |
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6 / 59 page  ADS1258-EP SBAS445D – MARCH 2009 – REVISED MARCH 2011 www.ti.com PIN ASSIGNMENTS ANALOG/DIGITAL PIN # NAME INPUT/OUTPUT DESCRIPTION 1 AIN3 Analog Input Analog Input 3: Single-Ended Channel 3, Differential Channel 1 ( –) 2 AIN2 Analog Input Analog Input 2: Single-Ended Channel 2, Differential Channel 1 (+) 3 AIN1 Analog Input Analog Input 1: Single-Ended Channel 1, Differential Channel 0 ( –) 4 AIN0 Analog Input Analog Input 0: Single-Ended Channel 0, Differential Channel 0 (+) Negative Analog Power Supply: 0V for unipolar operation, –2.5 V for bipolar operation. 5 AVSS Analog (Internally connected to exposed thermal pad of QFN package.) 6 AVDD Analog Positive Analog Power Supply: 5 V for unipolar operation, 2.5 V for bipolar operation. 7 PLLCAP Analog PLL Bypass Capacitor: Connect 22nF capacitor to AVSS when using crystal oscillator. 8 XTAL1 Analog 32.768-kHz Crystal Oscillator Input 1; see the Chrystal Oscillator section. 9 XTAL2 Analog 32.768-kHz Crystal Oscillator Input 2; see the Chrystal Oscillator section. 10 PWDN Digital Input Power-Down Input: Hold low for minimum of two fCLK cycles to engage low-power mode. 11 RESET Digital Input Reset Input: Hold low for minimum of two fCLK cycles to reset the device. Clock Select Input: Low = Activates Crystal Oscillator, fCLK output on CLKIO. 12 CLKSEL Digital Input High = Disables Crystal Oscillator, apply fCLK to CLKIO. 13 CLKIO Digital I/O System Clock Input/Output (See CLKSEL pin.) 14 GPIO0 Digital I/O General-Purpose Digital Input/Output 0 15 GPIO1 Digital I/O General-Purpose Digital Input/Output 1 16 GPIO2 Digital I/O General-Purpose Digital Input/Output 2 17 GPIO3 Digital I/O General-Purpose Digital Input/Output 3 18 GPIO4 Digital I/O General-Purpose Digital Input/Output 4 19 GPIO5 Digital I/O General-Purpose Digital Input/Output 5 20 GPIO6 Digital I/O General-Purpose Digital Input/Output 6 21 GPIO7 Digital I/O General-Purpose Digital Input/Output 7 22 SCLK Digital Input SPI Interface Clock Input: Data clocked in on rising edge, clocked out on falling edge. 23 DIN Digital Input SPI Interface Data Input: Data is input to the device. 24 DOUT Digital Output SPI Interface Data Output: Data is output from the device. 25 DRDY Digital Output Data Ready Output: Active low. 26 START Digital Input Start Conversion Input: Active high. 27 CS Digital Input SPI Interface Chip Select Input: Active low. 28 DVDD Digital Digital Power Supply: 2.7 V to 5.25 V 29 DGND Digital Digital Ground 30 VREFN Analog Input Reference Input Negative 31 VREFP Analog Input Reference Input Positive 32 AINCOM Analog Input Analog Input Common: Common input pin to all single-ended inputs. 33 AIN15 Analog Input Analog Input 15: Single-Ended Channel 15, Differential Channel 7 ( –) 34 AIN14 Analog Input Analog Input 14: Single-Ended Channel 14, Differential Channel 7 (+) 35 AIN13 Analog Input Analog Input 13: Single-Ended Channel 13, Differential Channel 6 ( –) 36 AIN12 Analog Input Analog Input 12: Single-Ended Channel 12, Differential Channel 6 (+) 37 AIN11 Analog Input Analog Input 11: Single-Ended Channel 11, Differential Channel 5 ( –) 38 AIN10 Analog Input Analog Input 10: Single-Ended Channel 10, Differential Channel 5 (+) 39 AIN9 Analog Input Analog Input 9: Single-Ended Channel 9, Differential Channel 4 ( –) 40 AIN8 Analog Input Analog Input 8: Single-Ended Channel 8, Differential Channel 4 (+) 41 ADCINN Analog Input ADC Differential Input ( –) 42 ADCINP Analog Input ADC Differential Input (+) 43 MUXOUTN Analog Output Multiplexer Differential Output ( –) 44 MUXOUTP Analog Output Multiplexer Differential Output (+) 45 AIN7 Analog Input Analog Input 7: Single-Ended Channel 7, Differential Channel 3 ( –) 46 AIN6 Analog Input Analog Input 6 : Single-Ended Channel 6, Differential Channel 3 (+) 47 AIN5 Analog Input Analog Input 5: Single-Ended Channel 5, Differential Channel 2 ( –) 48 AIN4 Analog Input Analog Input 4: Single-Ended Channel 4, Differential Channel 2 (+) 6 Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated Product Folder Link(s): ADS1258-EP |
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