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ADS8331IBRGER Datasheet(PDF) 9 Page - Texas Instruments |
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ADS8331IBRGER Datasheet(HTML) 9 Page - Texas Instruments |
9 / 57 page ADS8331, ADS8332 www.ti.com SBAS363D – DECEMBER 2009 – REVISED OCTOBER 2015 Electrical Characteristics: VA = 5 V (continued) At TA = –40°C to 85°C, VA = 5 V, VBD = 1.65 V to 5 V, VREF = 4.096 V, and fSAMPLE = 500 kSPS, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT CLOCK Internal conversion clock frequency 10.9 11.5 12.6 MHz Used as I/O clock only 40 MHz SCLK external serial clock Used as both I/O clock and conversion 1 21 MHz clock EXTERNAL VOLTAGE REFERENCE INPUT (REF+) – (REF–) 1.2 4.096 4.2 V Input reference VREF range(5) (REF–) – AGND –0.1 0.1 V Resistance (6) Reference input 20 k Ω DIGITAL INPUT/OUTPUT Logic family CMOS 1.65 < VBD < 2.5 V 0.8 × VBD VBD + 0.3 V VIH High-level input voltage 2.5 V ≤ VBD ≤ VA 0.65 × VBD VBD + 0.3 V 1.65 < VBD < 2.5 V –0.3 0.1 × VBD V VIL Low-level input voltage 2.5 V ≤ VBD ≤ VA –0.3 0.25 × VBD V II Input current VIN = VBD or DGND –1 1 µA CI Input capacitance 5 pF VA ≥ VBD ≥ 1.65 V, VOH High-level output voltage VBD – 0.6 VBD V IO = 100 μA VA ≥ VBD ≥ 1.65 V, VOL Low-level output voltage 0 0.4 V IO = –100 μA CO SDO pin capacitance Hi-Z state 5 pF CL Load capacitance 30 pF Data format Straight binary POWER-SUPPLY REQUIREMENTS VA Analog supply voltage(5) 4.5 5 5.5 V VBD Digital I/O supply voltage 1.65 VA + 0.2 V fSAMPLE = 500 kSPS 6.6 7.75 mA fSAMPLE = 250 kSPS in Auto-NAP mode 4.2 mA IA Analog supply current Nap mode, SCLK = VBD or DGND 390 500 μA Deep PD mode, SCLK = VBD or 80 250 nA DGND fSAMPLE = 500 kSPS 1.2 2 mA IBD Digital I/O supply current fSAMPLE = 250 kSPS in Auto-NAP mode 0.7 mA VA = 5 V, VBD = 5 V, fSAMPLE = 500 39 48.75 mW kSPS Power dissipation VA = 5 V, VBD = 5 V, fSAMPLE = 250 24.5 mW kSPS in Auto-NAP mode TEMPERATURE RANGE TA Operating free-air temperature –40 85 °C (5) The ADS8331/32 operates with VA from 2.7 V to 5.5 V, and VREF between 1.2 V and VA. However, the device may not meet the specifications listed in the Electrical Characteristics when VA is from 3.6 V to 4.5 V. (6) Can vary ±30%. Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: ADS8331 ADS8332 |
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