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AD7643 Arkusz danych(PDF) 3 Page - Analog Devices |
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AD7643 Arkusz danych(HTML) 3 Page - Analog Devices |
3 / 28 page AD7643 Rev. 0 | Page 3 of 28 SPECIFICATIONS AVDD = DVDD = 2.5 V; OVDD = 2.3 V to 3.6 V; VREF = 2.5 V; all specifications TMIN to TMAX, 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 AVDD1 V Analog Input CMRR fIN = 100 kHz 58 dB Input Current 1.25 MSPS throughput 2.5 μA Input Impedance2 THROUGHPUT SPEED Complete Cycle 800 ns Throughput Rate 1.25 MSPS DC ACCURACY Integral Linearity Error3 −3 ±1.5 +3 LSB4 No Missing Codes 18 Bits Differential Linearity Error −1 +1.25 LSB Transition Noise VREF = 2.5 V 1.7 LSB VREF = 2.048 V 2.0 LSB Zero Error, TMIN to TMAX5 −16 +16 LSB Zero Error Temperature Drift ±1 ppm/°C Gain Error, TMIN to TMAX5 −22 +22 LSB Gain Error Temperature Drift ±1 ppm/°C Power Supply Sensitivity AVDD = 2.5 V ± 5% ±16 LSB AC ACCURACY Dynamic Range VREF = 2.5 V 95 dB6 Signal-to-Noise fIN = 1 kHz, VREF = 2.5 V 93.5 dB fIN = 20 kHz, VREF = 2.5 V 93.5 dB fIN = 20 kHz, VREF = 2.048 V 92 dB fIN = 100 kHz, VREF = 2.5 V 93 dB Spurious-Free Dynamic Range fIN = 1 kHz, VREF = 2.5 V 118 dB fIN = 20 kHz, VREF = 2.5 V 114 dB fIN = 20 kHz, VREF = 2.048 V 111 dB fIN = 100 kHz, VREF = 2.5 V 108 dB Total Harmonic Distortion fIN = 1 kHz, VREF = 2.5 V −114 dB fIN = 20 kHz, VREF = 2.5 V −113 dB fIN = 20 kHz, VREF = 2.048 V −109 dB fIN = 100 kHz, VREF = 2.5 V −105 dB Signal-to-(Noise + Distortion) fIN = 1 kHz, VREF = 2.5 V 93.5 dB fIN = 20 kHz, VREF = 2.5 V 93.5 dB fIN = 20 kHz, VREF = 2.048 V 91.8 dB fIN = 100 kHz, VREF = 2.5 V 92.5 dB −3 dB Input Bandwidth 50 MHz SAMPLING DYNAMICS Aperture Delay 1 ns Aperture Jitter 5 ps rms Transient Response Full-scale step 250 ns INTERNAL REFERENCE PDREF = PDBUF = low Output Voltage REF @ 25°C 2.038 2.048 2.058 V Temperature Drift −40°C to +85°C ±8 ppm/°C Line Regulation AVDD = 2.5 V ± 5% ±15 ppm/V |
Podobny numer części - AD7643_15 |
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Podobny opis - AD7643_15 |
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