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AD9708 数据表(PDF) 3 Page - Analog Devices |
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AD9708 数据表(HTML) 3 Page - Analog Devices |
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3 / 16 page  DYNAMIC SPECIFICATIONS Parameter Min Typ Max Units DYNAMIC PERFORMANCE Maximum Output Update Rate (fCLOCK) 100 125 MSPS Output Settling Time (tST) (to 0.1%) 1 35 ns Output Propagation Delay (tPD)1 ns Glitch Impulse 5 pV-s Output Rise Time (10% to 90%) 1 2.5 ns Output Fall Time (10% to 90%) 1 2.5 ns Output Noise (IOUTFS = 20 mA) 50 pA/ √Hz Output Noise (IOUTFS = 2 mA) 30 pA/ √Hz AC LINEARITY TO NYQUIST Signal-to-Noise and Distortion Ratio fCLOCK = 10 MSPS; fOUT = 1.00 MHz 50 dB fCLOCK = 50 MSPS; fOUT = 1.00 MHz 50 dB fCLOCK = 50 MSPS; fOUT = 12.51 MHz 48 dB fCLOCK = 100 MSPS; fOUT = 5.01 MHz 50 dB fCLOCK = 100 MSPS; fOUT = 25.01 MHz 45 dB Total Harmonic Distortion fCLOCK = 10 MSPS; fOUT = 1.00 MHz –67 dBc fCLOCK = 50 MSPS; fOUT = 1.00 MHz –67 –62 dBc fCLOCK = 50 MSPS; fOUT = 12.51 MHz –59 dBc fCLOCK = 100 MSPS; fOUT = 5.01 MHz –64 dBc fCLOCK = 100 MSPS; fOUT = 25.01 MHz –48 dBc Spurious-Free Dynamic Range to Nyquist fCLOCK = 10 MSPS; fOUT = 1.00 MHz 68 dBc fCLOCK = 50 MSPS; fOUT = 1.00 MHz 62 68 dBc fCLOCK = 50 MSPS; fOUT = 12.51 MHz 63 dBc fCLOCK = 100 MSPS; fOUT = 5.01 MHz 67 dBc fCLOCK = 100 MSPS; fOUT = 25.01 MHz 50 dBc NOTES 1Measured single ended into 50 Ω load. Specifications subject to change without notice. DIGITAL SPECIFICATIONS Parameter Min Typ Max Units DIGITAL INPUTS Logic “1” Voltage @ DVDD = +5 V 3.5 5 V Logic “1” Voltage @ DVDD = +3 V 2.1 3 V Logic “0” Voltage @ DVDD = +5 V 0 1.3 V Logic “0” Voltage @ DVDD = +3 V 0 0.9 V Logic “1” Current –10 +10 µA Logic “0” Current –10 +10 µA Input Capacitance 5pF Input Setup Time (tS)2.0 ns Input Hold Time (tH)1.5 ns Latch Pulsewidth (tLPW) 3.5 ns Specifications subject to change without notice. 0.1% 0.1% tS tH tLPW t PD t ST DB0–DB7 CLOCK IOUTA OR IOUTB Figure 1. Timing Diagram (TMIN to TMAX , AVDD = +5 V, DVDD = +5 V, IOUTFS = 20 mA, Single-Ended Output, IOUTA, 50 Doubly Terminated, unless otherwise noted) AD9708 –3– REV. B (TMIN to TMAX, AVDD = +5 V, DVDD = +5 V, IOUTFS = 20 mA unless otherwise noted) |
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