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AD8021 Scheda tecnica(PDF) 3 Page - Analog Devices |
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AD8021 Scheda tecnica(HTML) 3 Page - Analog Devices |
3 / 28 page AD7986 Rev. B | Page 3 of 28 SPECIFICATIONS AVDD = DVDD = 2.5 V, BVDD = 5 V, VIO = 1.8 V to 2.7 V, VREF = 4.096 V, TA = −40°C to +85°C, unless otherwise noted. Table 2. Parameter Conditions Min Typ Max Unit RESOLUTION 18 Bits ANALOG INPUT Voltage Range (IN+) − (IN−) −V REF +V REF V Absolute Input Voltage IN+, IN− −0.1 V REF + 0.1 V Common-Mode Input Range IN+, IN− V REF × 0.475 V REF × 0.5 V REF × 0.525 V Analog Input CMRR f IN = 500 kHz 100 dB1 Leakage Current at 25°C Acquisition phase 250 nA Input Impedance See the Analog Inputs section ACCURACY No Missing Codes 18 Bits Differential Linearity Error −0.95 ±0.60 +1.50 LSB2 Integral Linearity Error −2.50 ±1.00 +2.50 LSB2 Transition Noise 2.0 LSB2 Gain Error, T MIN to TMAX 3 −20 ±2.4 +20 LSB2 Gain Error Temperature Drift ±0.5 ppm/°C Zero Error, T MIN to TMAX 3 −0.8 +0.8 mV Zero Temperature Drift ±0.3 ppm/°C Power Supply Sensitivity AVDD = 2.5 V ± 5% ±4 LSB2 THROUGHPUT Conversion Rate 0 2.00 MSPS Transient Response Full-scale step 100 ns AC ACCURACY Dynamic Range V REF = 4.096 V, internal reference 95.5 96.5 dB1 V REF = 5.0 V, external reference 97 98 Signal-to-Noise Ratio, SNR f IN = 20 kHz, VREF = 4.096 V, internal reference 94.5 95.5 dB1 f IN = 20 kHz, VREF = 5.0 V, external reference 96.5 97.0 dB1 Spurious-Free Dynamic Range, SFDR f IN = 20 kHz −115 dB1 Total Harmonic Distortion4, THD f IN = 20 kHz, VREF = 4.096 V, internal reference −113 dB1 f IN = 20 kHz, VREF = 5.0 V, external reference −114 dB1 Signal-to-(Noise + Distortion), SINAD f IN = 20 kHz, VREF = 4.096 V 94.5 95.5 dB1 SAMPLING DYNAMICS −3 dB Input Bandwidth 19 MHz Aperture Delay 0.7 ns 1 All specifications expressed in decibels are referred to a full-scale input FSR and tested with an input signal at 0.5 dB below full scale, unless otherwise specified. 2 LSB means least significant bit. With the ±4.096 V input range, one LSB is 31.25 µV. 3 See the Terminology section. These specifications include full temperature range variation but not the error contribution from the external reference. 4 Tested fully in production at f IN = 1 kHz. |
Codice articolo simile - AD8021 |
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Descrizione simile - AD8021 |
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