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AD7664 データシート(PDF) 3 Page - Analog Devices |
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AD7664 データシート(HTML) 3 Page - Analog Devices |
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3 / 28 page  AD7679 Rev. A | Page 3 of 28 SPECIFICATIONS –40°C to +85°C, VREF = 4.096 V, AVDD = DVDD= 5 V, OVDD = 2.7 V to 5.25 V, unless otherwise noted. Table 2. Parameter Conditions Min Typ Max Unit RESOLUTION 18 Bits ANALOG INPUT Voltage Range VIN+ – VIN– –VREF +VREF V Operating Input Voltage VIN+, VIN– to AGND –0.1 AVDD+0.1 V Analog Input CMRR fIN = 100 kHz 68 dB Input Current 570 kSPS Throughput 25 μA Input Impedance1 THROUGHPUT SPEED Complete Cycle 1.75 μs Throughput Rate 0 570 kSPS DC ACCURACY Integral Linearity Error –2.5 +2.5 LSB2 Differential Linearity Error –1 +1.75 LSB No Missing Codes 18 Bits Transition Noise VREF = 5 V 0.7 LSB Zero Error, TMIN to TMAX –40 +40 LSB Zero Error Temperature Drift ±0.5 ppm/°C Gain Error, TMIN to TMAX3 –0.048 See Note 3 +0.048 % of FSR Gain Error Temperature Drift ±1.6 ppm/°C Power Supply Sensitivity AVDD = 5 V ± 5% ±4 LSB AC ACCURACY Signal-to-Noise fIN = 2 kHz, VREF = 5 V 101 dB4 VREF = 4.096 V 97.5 99 dB fIN = 10 kHz, VREF = 4.096 V 98 dB fIN = 100 kHz, VREF = 4.096 V 97 dB Dynamic Range VIN+ = VIN– = VREF/2 = 2.5 V 103 dB Spurious-Free Dynamic Range fIN = 2 kHz 120 dB fIN = 10 kHz 118 dB fIN = 100 kHz 105 dB Total Harmonic Distortion fIN = 2 kHz –115 dB fIN = 10 kHz –113 dB fIN = 100 kHz –98 dB Signal-to-(Noise + Distortion) fIN = 2 kHz, VREF = 4.096 V 98 dB fIN = 2 kHz, –60 dB Input 40 dB –3 dB Input Bandwidth 26 MHz SAMPLING DYNAMICS Aperture Delay 2 ns Aperture Jitter 5 ps rms Transient Response Full-Scale Step 250 ns Overvoltage Recovery 250 ns REFERENCE External Reference Voltage Range REF 3 4.096 AVDD + 0.1 V REF Voltage with Reference Buffer REFBUFIN = 2.5 V 4.05 4.096 4.15 V Reference Buffer Input Voltage Range REFBUFIN 1.8 2.5 2.6 V REFBUFIN Input Current –1 +1 μA REF Current Drain 570 kSPS Throughput 235 μA |
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