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AD7989-1BCPZ-R2 датащи(PDF) 3 Page - List of Unclassifed Manufacturers |
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AD7989-1BCPZ-R2 датащи(HTML) 3 Page - List of Unclassifed Manufacturers |
3 / 24 page Data Sheet AD7989-1/AD7989-5 Rev. 0 | Page 3 of 24 SPECIFICATIONS VDD = 2.5 V, VIO = 2.3 V to 5.5 V, VREF = 5 V, TA = −40°C to +85°C, unless otherwise noted. Table 2. Parameter Test Conditions/Comments Min Typ Max Unit RESOLUTION 18 Bits ANALOG INPUT Voltage Range IN+ − IN− −VREF +VREF V Absolute Input Voltage IN+, IN− −0.1 VREF + 0.1 V Common-Mode Input Range IN+, IN− 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 18 Bits Differential Nonlinearity Error −0.85 ±0.5 +1.5 LSB Integral Nonlinearity Error −2 ±1 +2 LSB Transition Noise VREF = 5 V 1.05 LSB1 Gain Error, TMIN to TMAX2 −0.023 +0.004 +0.023 % of FS Gain Error Temperature Drift ±1 ppm/°C Zero Error, TMIN to TMAX2 ±100 +700 µV Zero Temperature Drift 0.5 ppm/°C Power Supply Rejection Ratio VDD = 2.5 V ± 5% 90 dB THROUGHPUT AD7989-1 Conversion Rate 0 100 kSPS AD7989-5 Conversion Rate 0 500 kSPS Transient Response Full-scale step 400 ns AC ACCURACY Dynamic Range VREF = 5 V 97 99 dB3 VREF = 2.5 V 93 dB3 Oversampled Dynamic Range4 fO = 1 kSPS 126 dB3 Signal-to-Noise Ratio fIN = 1 kHz, VREF = 5 V, TA = 25°C 95.5 98 dB3 fIN = 1 kHz, VREF = 2.5 V, TA = 25°C 92.5 dB3 Spurious-Free Dynamic Range fIN = 10 kHz −115 dB3 Total Harmonic Distortion5 fIN = 10 kHz −120 dB3 Signal-to-Noise-and-Distortion Ratio fIN = 1 kHz, VREF = 5 V, TA = 25°C 97 dB3 1 LSB means least significant bit. With the ±5 V input range, 1 LSB is 38.15 µV. 2 See the Terminology section. These specifications include full temperature range variation but not the error contribution from the external reference. 3 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. 4 Dynamic range is obtained by oversampling the ADC running at a throughput, fS, of 500 kSPS followed by postdigital filtering with an output word rate of fO. 5 Tested fully in production at fIN = 1 kHz. |
Аналогичный номер детали - AD7989-1BCPZ-R2 |
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Аналогичное описание - AD7989-1BCPZ-R2 |
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