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ADS8331IRGET Datasheet(PDF) 6 Page - Texas Instruments |
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ADS8331IRGET Datasheet(HTML) 6 Page - Texas Instruments |
6 / 39 page ADS8331 ADS8332 SBAS363 – DECEMBER 2009 www.ti.com ELECTRICAL CHARACTERISTICS: VA = 5V (continued) At TA = –40°C to +85°C, VA = 5V, VBD = 1.65V to 5V, VREF = 4.096V, and fSAMPLE = 500kSPS, unless otherwise noted. ADS8331I, ADS8332I ADS8331IB, ADS8332IB PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT CLOCK Internal conversion clock 10.9 11.5 12.6 10.9 11.5 12.6 MHz frequency Used as I/O clock only 40 40 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 4.096 4.2 1.2 4.096 4.2 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 0.65 × 0.65 × VIH High-level input voltage VA ≥ VBD ≥ 1.65V VBD + 0.3 VBD + 0.3 V (VBD) (VBD) 0.25 × 0.25 × VIL Low-level input voltage VA ≥ VBD ≥ 1.65V –0.3 –0.3 V (VBD) (VBD) II Input current VIN = VBD or DGND –50 50 –50 50 nA 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 = 100μA VA ≥ VBD ≥ 1.65V, VOL Low-level output voltage 0 0.4 0 0.4 V IO = –100μA 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) 4.5 5 5.5 4.5 5 5.5 V VBD Digital I/O supply voltage 1.65 VA + 0.2 1.65 VA + 0.2 V fSAMPLE = 500kSPS 6.6 7.75 6.6 7.75 mA fSAMPLE = 250kSPS in 4.2 4.2 mA Auto-Nap mode IA Analog supply current Nap mode, SCLK = VBD or 390 500 390 500 μA DGND Deep PD mode, SCLK = VBD 80 250 80 250 nA or DGND fSAMPLE = 500kSPS 1.2 2.0 1.2 2.0 mA IBD Digital I/O supply current fSAMPLE = 250kSPS in 0.7 0.7 mA Auto-Nap mode VA = 5.0V, VBD = 5.0V, 39 48.75 39 48.75 mW fSAMPLE = 500kSPS Power dissipation VA = 5.0V, VBD = 5.0V, fSAMPLE = 250kSPS in 24.5 24.5 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%. 6 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): ADS8331 ADS8332 |
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