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AD7982 датащи(PDF) 4 Page - Analog Devices |
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AD7982 датащи(HTML) 4 Page - Analog Devices |
4 / 29 page Data Sheet AD7903 Rev. A | Page 3 of 28 SPECIFICATIONS VDD = 2.5 V, VIO = 2.3 V to 5.5 V, VREF = 5 V, TA = −40°C to +125°C, unless otherwise noted.1 Table 2. Parameter Test Conditions/Comments Min Typ Max Unit RESOLUTION 16 Bits ANALOG INPUT Voltage Range INx+ − INx− −VREF +VREF V Absolute Input Voltage INx+, INx− −0.1 VREF + 0.1 V Common-Mode Input Range INx+, INx− VREF × 0.475 VREF × 0.5 VREF × 0.525 V Analog Input CMRR fIN = 450 kHz 67 dB Leakage Current at 25°C Acquisition phase 200 nA Input Impedance See the Analog Inputs section ACCURACY No Missing Codes 16 Bits Differential Nonlinearity Error VREF = 5 V −1.0 ±0.4 +1.0 LSB2 VREF = 2.5 V ±0.7 LSB2 Integral Nonlinearity Error VREF = 5 V −2.0 ±0.5 +2.0 LSB2 VREF = 2.5 V ±0.4 LSB2 Transition Noise VREF = 5 V 0.75 LSB2 VREF = 2.5 V 1.2 LSB2 Gain Error3 TMIN to TMAX −0.04 ±0.006 +0.04 % FS Gain Error Temperature Drift 0.19 ppm/°C Gain Error Match3 TMIN to TMAX 0.0 0.025 % FS Offset Error3 TMIN to TMAX −0.5 ±0.015 +0.5 mV Offset Temperature Drift 0.3 ppm/°C Offset Error Match3 TMIN to TMAX 0.05 1.0 mV Power Supply Sensitivity VDD = 2.5 V ± 5% ±0.1 LSB2 THROUGHPUT Conversion Rate VIO ≥ 2.3 V up to 85°C, VIO ≥ 3.3 V above 85°C, up to 125°C 0 1 MSPS Transient Response Full-scale step 290 ns AC ACCURACY Dynamic Range VREF = 5 V 95.5 dB4 VREF = 2.5 V 92.5 dB4 Oversampled Dynamic Range fOUT = 10 kSPS 113.5 dB4 Signal-to-Noise Ratio (SNR) fIN = 1 kHz, VREF = 5 V 92 94 dB4 fIN = 1 kHz, VREF = 2.5 V 89 91 dB4 Spurious-Free Dynamic Range (SFDR) fIN = 1 kHz −115 dB4 Total Harmonic Distortion (THD) fIN = 1 kHz −112 dB4 Signal-to-(Noise + Distortion) (SINAD) fIN = 1 kHz, VREF = 5 V 91.5 93.5 dB4 fIN = 1 kHz, VREF = 2.5 V 88.5 90.5 dB4 Channel-to-Channel Isolation fIN = 10 kHz −120 dB4 1 In this data sheet, the voltages for the VDDx, VIOx, and REFx pins are indicated by VDD, VIO, and VREF, respectively. 2 With the 5 V input range, 1 LSB = 152.6 µV. With the 2.5 V input range, 1 LSB = 76.3 µV. 3 See the Terminology section. These specifications include full temperature range variation, but they do not include the error contribution from the external reference. 4 All specifications in decibels (dB) are referred to a full-scale input FSR. Although these parameters are referred to full scale, they are tested with an input signal at 0.5 dB below full scale, unless otherwise specified. |
Аналогичный номер детали - AD7982 |
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Аналогичное описание - AD7982 |
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