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ADS1208IPWRG4 Datasheet(PDF) 4 Page - Texas Instruments |
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ADS1208IPWRG4 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 23 page  www.ti.com ADS1208 SBAS348A – MARCH 2005 – REVISED MARCH 2005 ELECTRICAL CHARACTERISTICS (continued) Over recommended operating free-air temperature range at –40°C to +85°C, AV DD = BVDD = +5V, VREF = internal +2.5V, Mode 3, MCLK input = 20MHz, differential input voltage = 200mV PP, common-mode voltage = 1.4V, and 16-bit Sinc 3 filter with OSR = 256, unless otherwise noted. ADS1208I PARAMETER TEST CONDITIONS MIN TYP(1) MAX UNIT AC Accuracy SNR VIN = 200mVPP at 1kHz 80 82 dB SINAD VIN = 200mVPP at 1kHz 77 81.5 dB THD VIN = 200mVPP at 1kHz –91 –80 dB SFDR VIN = 200mVPP at 1kHz 80 93 dB Digital Inputs(6) Logic family CMOS VIH High-level input voltage 0.7 x BVDD BVDD + 0.3 V VIL Low-level input voltage –0.3 0.3 x BVDD V IIN Input current VIN = BVDD or GND –50 50 nA CI Input capacitance 5 pF Digital Outputs(6) Logic family CMOS VOH High-level output voltage BVDD = 4.5V, IOH = –100µA 4.44 V VOL Low-level output voltage BVDD = 4.5V, IOL = +100µA 0.5 V CL Load capacitance 30 pF Data format Bit stream Digital Inputs(7) Logic family LVCMOS VIH High-level input voltage BVDD = 3.6V 2 BVDD + 0.3 V VIL Low-level input voltage BVDD = 2.7V –0.3 0.8 V IIN Input current VIN = BVDD or GND –50 50 nA CI Input capacitance 5 pF Digital Outputs(7) Logic family LVCMOS VOH High-level output voltage BVDD = 2.7, IOH = –100µA BVDD – 0.2 V VOL Low-level output voltage BVDD = 2.7, IOL = +100µA 0.2 V CL Load capacitance 30 pF Data format Bit stream Power Supply Analog supply voltage, AVDD 4.5 5.0 5.5 V Digital interface supply voltage, BVDD 2.7 5 5.5 V Operating supply current, AIDD Modes 0, 1 and 2 11.9 15.0 mA Operating supply current, AIDD Mode 3 11.5 14.5 mA Operating supply current, BIDD Modes 0, 1 and 2 2.3 3.0 mA Operating supply current, BIDD Mode 3 1.3 2.0 mA Power dissipation Modes 0, 1 and 2 71 90 mW Power dissipation Mode 3 64 82.5 mW (6) Applicable for 5.0V nominal supply; BVDD (min) = 4.5V and BVDD (max) = 5.5V. (7) Applicable for 3.0V nominal supply; BVDD (min) = 2.7V and BVDD (max) = 3.6V 4 |
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