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AD7641 Arkusz danych(PDF) 4 Page - Analog Devices |
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AD7641 Arkusz danych(HTML) 4 Page - Analog Devices |
4 / 29 page AD7641 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 2 MSPS throughput 18 μA Input Impedance2 THROUGHPUT SPEED Complete Cycle Wideband warp, warp modes 500 ns Throughput Rate Wideband warp, warp modes 0.001 2 MSPS Time Between Conversions Wideband warp, warp modes 1 ms Complete Cycle Normal mode 667 ns Throughput Rate Normal mode 0 1.5 MSPS DC ACCURACY Integral Linearity Error3 TMIN to TMAX = −40°C to +70°C −3 ±2 +3 LSB4 Integral Linearity Error TMIN to TMAX = −40°C to +85°C −3.5 ±2 +3.5 LSB4 No Missing Codes 18 Bits Differential Linearity Error −1 +2 LSB Transition Noise VREF = 2.5 V 1.6 LSB Transition Noise VREF = 2.048 V 2.0 LSB Zero Error, TMIN to TMAX5 −15 +15 LSB Zero Error Temperature Drift ±0.5 ppm/°C Gain Error, TMIN to TMAX5 −0.25 +0.25 % of FSR 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 95.5 dB6 Signal-to-Noise 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 = 20 kHz, VREF = 2.5 V 112 dB fIN = 20 kHz, VREF = 2.048 V 113 dB fIN = 100 kHz, VREF = 2.5 V 101 dB Total Harmonic Distortion fIN = 20 kHz, VREF = 2.5 V −115 dB fIN = 20 kHz, VREF = 2.048 V −116 dB fIN = 100 kHz, VREF = 2.5 V −101 dB Signal-to-(Noise + Distortion) 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 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 115 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 ±10 ppm/°C Line Regulation AVDD = 2.5 V ± 5% ±15 ppm/V |
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