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AD7654ASTZ 数据表(PDF) 3 Page - Analog Devices |
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AD7654ASTZ 数据表(HTML) 3 Page - Analog Devices |
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3 / 28 page  AD7654 Rev. B | Page 3 of 28 SPECIFICATIONS AVDD = DVDD = 5 V, OVDD = 2.7 V to 5.25 V; all specifications TMIN to TMAX, unless otherwise noted. Table 2. Parameter Conditions Min Typ Max Unit RESOLUTION 16 Bits ANALOG INPUT Voltage Range VINx – VINxN 0 2 VREF V Common-Mode Input Voltage VINxN −0.1 +0.5 V Analog Input CMRR fIN = 100 kHz 55 dB Input Current 500 kSPS throughput 45 μA Input Impedance1 THROUGHPUT SPEED Complete Cycle In normal mode 2 μs Throughput Rate In normal mode 0 500 kSPS Complete Cycle In impulse mode 2.25 μs Throughput Rate In impulse mode 0 444 kSPS DC ACCURACY Integral Linearity Error2 −3.5 +3.5 LSB3 No Missing Codes 16 Bits Transition Noise 0.7 LSB Full-Scale Error4 TMIN to TMAX ±0.25 ±0.5 % of FSR Full-Scale Error Drift4 ±2 ppm/°C Unipolar Zero Error4 TMIN to TMAX ±0.25 % of FSR Unipolar Zero Error Drift4 ±0.8 ppm/°C Power Supply Sensitivity AVDD = 5 V ±5% 0.8 LSB AC ACCURACY Signal-to-Noise fIN = 20 kHz 88 90 dB5 fIN = 100 kHz 89 dB Spurious-Free Dynamic Range fIN = 100 kHz 105 dB Total Harmonic Distortion fIN = 100 kHz −100 dB Signal-to-Noise and Distortion fIN = 20 kHz 87.5 90 dB fIN = 100 kHz 88.5 dB fIN = 100 kHz, −60 dB Input 30 dB Channel-to-Channel Isolation fIN = 100 kHz −92 dB −3 dB Input Bandwidth 10 MHz SAMPLING DYNAMICS Aperture Delay 2 ns Aperture Delay Matching 30 ps Aperture Jitter 5 ps rms Transient Response Full-scale step 250 ns REFERENCE External Reference Voltage Range 2.3 2.5 AVDD/2 V External Reference Current Drain 500 kSPS throughput 180 μA DIGITAL INPUTS Logic Levels VIL −0.3 +0.8 V VIH +2.0 DVDD + 0.3 V IIL −1 +1 μA IIH −1 +1 μA |
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