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AD79821 датащи(PDF) 3 Page - Analog Devices |
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AD79821 датащи(HTML) 3 Page - Analog Devices |
3 / 24 page AD7946 Rev. A | Page 3 of 24 SPECIFICATIONS VDD = 4.5 V to 5.5 V, VIO = 2.3 V to VDD, REF = VDD, TA = −40°C to +85°C, unless otherwise noted. Table 2. Parameter Conditions Min Typ Max Unit RESOLUTION 14 Bits ANALOG INPUT Voltage Range IN+ − IN− 0 REF V Absolute Input Voltage IN+ −0.1 VDD + 0.1 V IN− −0.1 0.1 V Analog Input CMRR fIN = 200 kHz 65 dB Leakage Current at 25°C Acquisition phase 1 nA Input Impedance See the Analog Input section ACCURACY No Missing Codes 14 Bits Differential Linearity Error −0.7 ±0.3 +0.7 LSB1 Integral Linearity Error −1 ±0.4 +1 LSB Transition Noise REF = VDD = 5 V 0.33 LSB Gain Error2, TMIN to TMAX ±0.3 ±6 LSB Gain Error Temperature Drift ±1 ppm/°C Offset Error2, TMIN to TMAX ±0.3 ±6 LSB Offset Temperature Drift ±1 ppm/°C Power Supply Sensitivity VDD = 5 V ± 5% ±0.1 LSB THROUGHPUT Conversion Rate 0 500 kSPS Transient Response Full-scale step 400 ns AC ACCURACY Signal-to-Noise fIN = 20 kHz, REF = 5 V 84.5 85 dB3 fIN = 20 kHz, REF = 2.5 V 84 dB Spurious-Free Dynamic Range fIN = 20 kHz −100 dB Total Harmonic Distortion fIN = 20 kHz −100 dB Signal-to-(Noise + Distortion) fIN = 20 kHz, REF = 5 V 84.5 85 dB fIN = 20 kHz, REF = 5 V, −60 dB input 25 dB Intermodulation Distortion4 100 dB 1 LSB means least significant bit. With the 5 V input range, one LSB is 305.2 μV. 2 See the Terminology section. These specifications do include full temperature range variation but do not include the error contribution from the external reference. 3 All specifications in dB are referred to a full-scale input, FS. Tested with an input signal at 0.5 dB below full scale, unless otherwise specified. 4 fIN1 = 21.4 kHz, fIN2 = 18.9 kHz, each tone at −7 dB below full scale. |
Аналогичный номер детали - AD79821 |
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Аналогичное описание - AD79821 |
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