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ADS8331IPWR Datasheet(PDF) 4 Page - Texas Instruments |
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ADS8331IPWR Datasheet(HTML) 4 Page - Texas Instruments |
4 / 45 page ADS8331 ADS8332 SBAS363B – DECEMBER 2009 – REVISED DECEMBER 2010 www.ti.com ELECTRICAL CHARACTERISTICS: VA = 2.7V (continued) At TA = –40°C to +85°C, VA = 2.7V, VBD = 1.65V to 2.7V, VREF = 2.5V, and fSAMPLE = 500kSPS, unless otherwise noted. ADS8331I, ADS8332I ADS8331IB, ADS8332IB PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT CLOCK Internal conversion clock 10.5 11 12.2 10.5 11 12.2 MHz frequency Used as I/O clock only 25 25 MHz SCLK external serial clock Used as both I/O clock and 1 21 1 21 MHz conversion clock EXTERNAL VOLTAGE REFERENCE INPUT Input (REF+) – (REF–) 1.2 2.525 1.2 2.525 V VREF reference (REF–) – AGND –0.1 0.1 –0.1 0.1 V range(5) Resistance (6) Reference input 20 20 k Ω DIGITAL INPUT/OUTPUT Logic family CMOS CMOS 1.65V < VBD < 2.5V 0.8 × VBD VBD + 0.3 0.8 × VBD VBD + 0.3 V VIH High-level input voltage 2.5V ≤ VBD ≤ VA 0.65 × VBD VBD + 0.3 0.65 × VBD VBD + 0.3 V 1.65 < VBD < 2.5V –0.3 0.1 × VBD –0.3 0.1 × VBD V VIL Low-level input voltage 2.5V ≤ VBD ≤ VA –0.3 0.25 × VBD –0.3 0.25 × VBD V II Input current VIN = VBD or DGND –1 1 –1 1 mA CI Input capacitance 5 5 pF VA ≥ VBD ≥ 1.65V, VOH High-level output voltage VBD – 0.6 VBD VBD – 0.6 VBD V IO = 100mA VA ≥ VBD ≥ 1.65V, VOL Low-level output voltage 0 0.4 0 0.4 V IO = –100mA CO SDO pin capacitance Hi-Z state 5 5 pF CL Load capacitance 30 30 pF Data format Straight binary Straight binary POWER-SUPPLY REQUIREMENTS VA Analog supply voltage(5) 2.7 3.6 2.7 3.6 V VBD Digital I/O supply voltage 1.65 VA + 0.2 1.65 VA + 0.2 V fSAMPLE = 500kSPS 5.2 6.5 5.2 6.5 mA fSAMPLE = 250kSPS in 3.2 3.2 mA Auto-Nap mode IA Analog supply current Nap mode, SCLK = VBD or 325 400 325 400 mA DGND Deep PD mode, SCLK = VBD 50 250 50 250 nA or DGND fSAMPLE = 500kSPS 0.1 0.4 0.1 0.4 mA IBD Digital I/O supply current fSAMPLE = 250kSPS in 0.05 0.05 mA Auto-Nap mode VA = 2.7V, VBD = 1.65V, 14.2 18.2 14.2 18.6 mW fSAMPLE = 500kSPS Power dissipation VA = 2.7V, VBD = 1.65V, fSAMPLE = 250kSPS in 8.72 8.72 mW Auto-Nap mode TEMPERATURE RANGE TA Operating free-air temperature –40 +85 –40 +85 °C (5) The ADS8331/32 operates with VA between 2.7V and 5.5V, and VREF between 1.2V and VA. However, the device may not meet the specifications listed in the Electrical Characteristics when VA is between 3.6V and 4.5V. (6) Can vary ±30%. 4 Submit Documentation Feedback Copyright © 2009–2010, Texas Instruments Incorporated Product Folder Link(s): ADS8331 ADS8332 |
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