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ADS8328IBPW bảng dữ liệu(PDF) 6 Page - Burr-Brown (TI) |
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ADS8328IBPW bảng dữ liệu(HTML) 6 Page - Burr-Brown (TI) |
6 / 40 page www.ti.com ADS8327 ADS8328 SLAS415A – APRIL 2006 – REVISED MAY 2006 SPECIFICATIONS (continued) T A = –40°C to 85°C, +VA = 5 V, +VBD = +5.5 V to +1.65 V, Vref = 4.096 V, fSAMPLE = 500 kHz (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DYNAMIC CHARACTERISTICS VIN = 4.096 Vpp at 10 kHz -96 THD Total harmonic distortion (4) VIN = 4.096 Vpp at 100 kHz, ADS8327/28IB -95.7 dB VIN = 4.096 Vpp at 100 kHz, ADS8327/28I -95.7 VIN = 4.096 Vpp at 10 kHz 91 SNR Signal-to-noise ratio dB VIN = 4.096 Vpp at 100 kHz 89 VIN = 4.096 Vpp at 10 kHz 91 SINAD Signal-to-noise + distortion dB VIN = 4.096 Vpp at 100 kHz 88 VIN = 4.096 Vpp at 10 kHz 100 SFDR Spurious free dynamic range VIN = 4.096 Vpp at 100 kHz, ADS8327/28IB 98.8 dB VIN = 4.096 Vpp at 100 kHz, ADS8327/28I 98.8 -3dB Small signal bandwidth 30 MHz CLOCK Internal conversion clock frequency 10.9 12 12.6 MHz Used as I/O clock only 50 SCLK External serial clock MHz As I/O clock and conversion clock 1 21 EXTERNAL VOLTAGE REFERENCE INPUT Vref(REF+ – REF–) 5.5 V ≥ +VA ≥ 4.5 V 0.3 4.096 4.2 Input reference Vref V range (REF–) – AGND –0.1 0.1 Resistance (5) Reference input 80 k Ω DIGITAL INPUT/OUTPUT Logic family — CMOS VIH High-level input voltage 5.5 V ≥ +VBD ≥ 4.5 V 0.65 × (+VBD) +VBD + 0.3 V VIL Low-level input voltage 5.5 V ≥ +VBD ≥ 4.5 V –0.3 0.35 × (+VBD) V II Input current VI = +VBD or BDGND -50 50 nA Ci Input capacitance 5 pF 5.5 V ≥ +VBD ≥ 4.5 V, VOH High-level output voltage +VBD – 0.6 +VBD V IO = 100 µA 5.5 V ≥ +VBD ≥ 4.5 V, VOL Low-level output voltage 0 0.4 V IO = 100 µA CO Output capacitance 5 pF CL Load capacitance 30 pF Data format — straight binary POWER SUPPLY REQUIREMENTS +VBD 1.65 3.3 5.5 V Power supply voltage +VA 4.5 5 5.5 V 500-kHz Sample rate 5 6.2 mA Supply current Nap mode 0.3 0.5 PD Mode 6 50 nA Buffer I/O supply current 500 KSPS 1 mA +VA = 5 V, +VBD = 5 V 30 38.5 Power dissipation mW +VA = 5 V, +VBD = 1.8 V 25.4 32 TEMPERATURE RANGE TA Operating free-air temperature –40 85 °C (4) Calculated on the first nine harmonics of the input frequency (5) Can vary ±30% 6 Submit Documentation Feedback |
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