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ADS8318IDRCT bảng dữ liệu(PDF) 4 Page - Texas Instruments |
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ADS8318IDRCT bảng dữ liệu(HTML) 4 Page - Texas Instruments |
4 / 28 page ADS8318 SLAS568 – MAY 2008 ........................................................................................................................................................................................................ www.ti.com SPECIFICATIONS (continued) TA = –40°C to 85°C, +VA = 5 V, +VBD = 5 V to 2.375 V, Vref = 4 V, fSAMPLE = 500 kHz (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DYNAMIC CHARACTERISTICS VIN 0.4 dB below FS at 1 kHz, Vref = 5 V –114 THD Total harmonic distortion (5) VIN 0.4 dB below FS at 10 kHz, Vref = 5 V –108 dB VIN 0.4 dB below FS at 100 kHz, Vref = 5 V –91.5 VIN 0.4 dB below FS at 1 kHz, Vref = 5 V 96 VIN 0.4 dB below FS at 10 kHz, Vref = 5 V 95.2 SNR Signal-to-noise ratio dB VIN 0.4 dB below FS at 100 kHz, Vref = 5 V 92.5 ADS8318IB VIN 0.4 dB below FS at 1 kHz, Vref = 5 V 95.5 VIN 0.4 dB below FS at 1 kHz, Vref = 5 V 96 SINAD Signal-to-noise + distortion VIN 0.4 dB below FS at 10 kHz, Vref = 5 V 95 dB VIN 0.4 dB below FS at 100 kHz, Vref = 5 V 89.5 VIN 0.4 dB below FS at 1 kHz, Vref = 5 V 116 SFDR Spurious free dynamic range VIN 0.4 dB below FS at 10 kHz, Vref = 5 V 109 dB VIN 0.4 dB below FS at 100 kHz, Vref = 5 V 92 –3dB Small signal bandwidth 15 MHz EXTERNAL REFERENCE INPUT Vref Input range 2.048 4.096 VDD+0.1 V Reference input current (6) During conversion 250 µA POWER SUPPLY REQUIREMENTS +VBD 2.375 3.3 5.5 V Power supply voltage +VA 4.5 5 5.5 V Supply current +VA 500-kHz Sample rate 3.6 4.5 mA PVA Power dissipation +VA = 5 V, 500-kHz Sample rate 18 22.5 mW IVApd Device power-down current(7) +VA = 5 V 50 300 nA LOGIC FAMILY CMOS VIH IIH = 5 µA +(0.7 ×VBD) +VBD+0.3 V VIL IIL = 5 µA –0.3 +(0.3 ×VBD) V Logic level VOH IOH = 2 TTL loads +VBD–0.3 +VBD V VOL IOL = 2 TTL loads 0 0.4 V TEMPERATURE RANGE TA Operating free-air temperature –40 85 °C (5) Calculated on the first nine harmonics of the input frequency (6) Can vary ±20% (7) Device automatically enters power-down state at the end of every conversion, and continues to be in power-down state as long as it is in acquistion phase. 4 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): ADS8318 |
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