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ADS1232IPWR Datasheet(PDF) 7 Page - Texas Instruments |
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ADS1232IPWR Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 40 page  www.ti.com ADS1232 ADS1234 SBAS350F – JUNE 2005 – REVISED FEBRUARY 2008 PIN DESCRIPTIONS TERMINAL ANALOG/DIGITAL NAME ADS1232 ADS1234 INPUT/OUTPUT DESCRIPTION DVDD 1 1 Digital Digital Power Supply: 2.7V to 5.3V DGND 2 2 Digital Digital Ground CLKIN/ External Clock Input: typically 4.9152MHz. Tie low to activate internal oscillator. Can also use 3 3 Digital/Digital Input XTAL1 external crystal across CLKIN/XTAL1 and XTAL2 pins. See text for more details. XTAL2 4 4 Digital External crystal connection DGND 5 5 Digital Digital Ground DGND 6 6 Digital Digital Ground TEMP 7 – Digital Input Onboard Temperature Diode Enable Input Mux Select Input pin (MSB) Input Mux Select Input pin (LSB): A1 A0 Channel A1 – 7 Digital Input 0 0 AIN1 A0 8 8 0 1 AIN2 1 0 AIN3 1 1 AIN4 CAP 9 9 Analog Gain Amp Bypass Capacitor Connection CAP 10 10 Analog Gain Amp Bypass Capacitor Connection AINP1 11 11 Analog Input Positive Analog Input Channel 1 AINN1 12 12 Analog Input Negative Analog Input Channel 1 AINP3 – 13 Analog Input Positive Analog Input Channel 3 AINN3 – 14 Analog Input Negative Analog Input Channel 3 AINN4 – 15 Analog Input Negative Analog Input Channel 4 AINP4 – 16 Analog Input Positive Analog Input Channel 4 AINN2 13 17 Analog Input Negative Analog Input Channel 2 AINP2 14 18 Analog Input Positive Analog Input Channel 2 REFN 15 19 Analog Input Negative Reference Input REFP 16 20 Analog Input Positive Reference Input AGND 17 21 Analog Analog Ground AVDD 18 22 Analog Analog Power Supply, 2.7V to 5.3V Gain Select GAIN1 GAIN0 GAIN 0 0 1 GAIN0 19 23 Digital Input GAIN1 20 24 0 1 2 1 0 64 1 1 128 Data Rate Select: SPEED DATA RATE SPEED 21 25 Digital Input 0 10SPS 1 80SPS PDWN 22 26 Digital Input Power-Down: Holding this pin low powers down the entire converter and resets the ADC. Serial Clock: Clock out data on the rising edge. Also used to initiate Offset Calibration and Sleep SCLK 23 27 Digital Input modes. See text for more details. Dual-Purpose Output: DRDY/ 24 28 Digital Output Data Ready: Indicates valid data by going low. DOUT Data Output: Outputs data, MSB first, on the first rising edge of SCLK. Copyright © 2005–2008, Texas Instruments Incorporated 7 Product Folder Link(s): ADS1232 ADS1234 |
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