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AD768-EB 数据表(PDF) 2 Page - Analog Devices |
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AD768-EB 数据表(HTML) 2 Page - Analog Devices |
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2 / 20 page  AD768–SPECIFICATIONS Parameter Min Typ Max Units RESOLUTION 16 Bits DC ACCURACY 1 Linearity Error TA = +25 °C–8 ±4 +8 LSB TMIN to TMAX –8 +8 LSB Differential Nonlinearity TA = +25°C–6 ±2 +6 LSB TMIN to TMAX –8 +8 LSB Monotonicity (13-Bit) GUARANTEED OVER RATED SPECIFICATION TEMPERATURE RANGE ANALOG OUTPUT Offset Error –0.2 +0.2 % of FSR Gain Error –1.0 +1.0 % of FSR Full-Scale Output Current 2 20 mA Output Compliance Range –1.2 +5.0 V Output Resistance 0.8 1.0 1.2 k Ω Output Capacitance 3 pF REFERENCE OUTPUT Reference Voltage 2.475 2.5 2.525 V Reference Output Current 3 +5.0 +15 mA REFERENCE INPUT Reference Input Current 1 5 7 mA Reference Bandwidth4 Small Signal, IREF = 5 mA ± 0.1 mA 28 MHz Large Signal, IREF = 4 mA ± 2 mA 9 MHz TEMPERATURE COEFFICIENTS Unipolar Offset Drift –5 +5 ppm of FSR/ oC Gain Drift 5 –20 +20 ppm of FSR/ oC Gain Drift 6 –40 +40 ppm of FSR/ oC Reference Voltage Drift –30 +30 ppm/ oC DYNAMIC PERFORMANCE 7 Maximum Output Update Rate 30 40 MSPS Output Settling Time (tST) (to 0.025%) 25 35 ns Output Propagation Delay (tPD)10 ns Glitch Impulse 35 pV-s Output Rise Time (10% to 90%) 5 ns Output Fall Time (10% to 90%) 5 ns Output Noise (DB0–DB15 High, into 50 Ω) 3 nV/ √Hz Differential Gain Error 0.01 % Differential Phase Error 0.01 Degree DIGITAL INPUTS Logic “1” Voltage 3.5 V Logic “0” Voltage 1.5 V Logic “1” Current –10 +10 µA Logic “0” Current –10 +10 µA Input Capacitance 10 pF Input Setup Time (tS)10 ns Input Hold Time (tH)5 ns Latch Pulse Width (tLPW)10 ns AC LINEARITY 7 Spurious-Free Dynamic Range (SFDR Within a Window) FOUT = 1.002 MHz; CLOCK = 10 MHz; 2 MHz Span 86 79 dB FOUT = 1.002 MHz; CLOCK = 20 MHz; 2 MHz Span 85 dB FOUT = 5.002 MHz; CLOCK = 30 MHz; 10 MHz Span 78 dB Spurious-Free Dynamic Range (SFDR to Nyquist) FOUT = 1.002 MHz; CLOCK = 10 MHz 74 70 dB FOUT = 1.002 MHz; CLOCK = 20 MHz 73 dB FOUT = 5.002 MHz; CLOCK = 30 MHz 67 dB Total Harmonic Distortion (THD) FOUT = 1.002 MHz; CLOCK = 10 MHz –71 –68 dB FOUT = 1.002 MHz; CLOCK = 20 MHz –66 dB FOUT = 5.002 MHz; CLOCK = 30 MHz –61 dB REV. B –2– (TMIN to TMAX , VDD = +5.0 V, VEE = –5.0 V, LADCOM, REFCOM, DCOM = 0 V, IREFIN = 5 mA, CLOCK = 10 MHz, unless otherwise noted) |
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