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ADS8318IDGSTG4 bảng dữ liệu(PDF) 7 Page - Texas Instruments |
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ADS8318IDGSTG4 bảng dữ liệu(HTML) 7 Page - Texas Instruments |
7 / 35 page 1 2 3 4 5 10 9 8 7 6 REFIN +VA IN+ IN- GND +VBD SDI SCLK SDO CONVST MSOP PACKAGE (TOP VIEW) 1 2 3 4 5 10 9 8 7 6 (TOP VIEW) SONPACKAGE REFIN +VA IN+ IN- GND +VBD SDI SCLK SDO CONVST -0.01 -0.009 -0.008 -0.007 -0.006 -0.005 -0.004 -0.003 -0.002 -0.001 4.5 4.75 5 5.25 5.5 +VA -SupplyVoltage-V +VBD=2.7V, V =4.096V, f =500KSPS, T =30°C ref s A 0.2 0.22 0.24 0.26 0.28 0.3 0.32 0.34 0.36 0.38 0.4 4.5 4.75 5 5.25 5.5 +VA -SupplyVoltage-V +VBD=2.7V, V =4.096V, f =500KSPS, T =30°C ref s A 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 2 2.5 3 3.5 4 4.5 5 V -ReferenceVoltage-V ref +VA =5V +VBD=2.7V, f =500KSPS, T =30°C s A ADS8318 www.ti.com SLAS568A – MAY 2008 – REVISED MARCH 2011 PIN ASSIGNMENTS Terminal Functions TERMINAL I/O DESCRIPTION NO. NAME ANALOG PINS 1 REFIN I Reference (positive) input. Decouple with GND pin using 0.1- μF bypass capacitor and 10-μF storage capacitor. 3 +IN I Noninverting analog signal input 4 –IN I Inverting analog signal input I/O PINS Convert input. It also functions as the CS input in 3-wire interface mode. Refer to Description and Timing 6 CONVST I Diagrams sections for more details. 7 SDO O Serial data output. 8 SCLK I Serial I/O clock input. Data (on SDO o/p) is synchronized with this clock. 9 SDI I Serial data input. The SDI level at the start of a conversion selects the mode of operation such as CS or daisy chain mode. It also serves as the CS input in 4-wire interface mode. Refer to Description and Timing Diagrmas sections for more details. POWER SUPPLY PINS 2 +VA – Analog power supply. Decoupled with GND pin. 5 GND – Device ground. Note this is a common ground pin for both analog power supply (+VA) and digital I/O supply (+VBD). 10 +VBD – Digital I/O power supply. Decouple with GND pin. TYPICAL CHARACTERISTICS OFFSET ERROR GAIN ERROR OFFSET ERROR vs vs vs SUPPLY VOLTAGE SUPPLY VOLTAGE REFERENCE VOLTAGE Figure 3. Figure 4. Figure 5. Copyright © 2008–2011, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Link(s): ADS8318 |
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