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4 / 42 page www.ti.com ADS8329 ADS8330 SLAS516 – DECEMBER 2006 SPECIFICATIONS (continued) T A = –40°C to 85°C, +VA = 5 V, +VBD = +5.5 V to +1.65 V, Vref = 5 V, fSAMPLE = 1 MHz (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DYNAMIC CHARACTERISTICS VIN = 5 Vpp at 10 kHz –102 THD Total harmonic distortion (4) dB VIN = 5 Vpp at 100 kHz –95 VIN = 5 Vpp at 10 kHz 93 SNR Signal-to-noise ratio ADS8329/30IB 90 92 dB VIN = 5 Vpp at 100 kHz ADS8329/30I 90 VIN = 5 Vpp at 10 kHz 92 SINAD Signal-to-noise + distortion dB VIN = 5 Vpp at 100 kHz 90 VIN = 5 Vpp at 10 kHz 105 SFDR Spurious free dynamic range dB VIN = 5 Vpp at 100 kHz 97 -3dB Small signal bandwidth 30 MHz CLOCK Internal conversion clock frequency 21 22.9 24.5 MHz Used as I/O clock only 50 SCLK External serial clock MHz As I/O clock and conversion clock 1 42 EXTERNAL VOLTAGE REFERENCE INPUT Input Vref[REF+ – (REF–)] 5.5 V ≥ +VA ≥ 4.5 V 0.3 5 5 Vref reference V (REF–) – AGND –0.1 0.1 range Resistance (5) Reference input 40 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 0.35 × VIL Low-level input voltage 5.5 V ≥ +VBD ≥ 4.5 V –0.3 V (+VBD) 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 1-MHz Sample rate 7.0 7.8 mA Supply current Nap mode 0.3 0.5 PD Mode 4 50 nA Buffer I/O supply current 1 MSPS 1.7 mA +VA = 5 V, +VBD = 5 V 44 48 Power dissipation mW +VA = 5 V, +VBD = 1.8 V 35 39.5 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% 4 Submit Documentation Feedback |
Số phần tương tự - ADS8327 |
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Mô tả tương tự - ADS8327 |
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