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AD10201 Folha de dados(PDF) 10 Page - Analog Devices |
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AD10201 Folha de dados(HTML) 10 Page - Analog Devices |
10 / 20 page REV. 0 AD10201 –10– VCC 17k 8k 100 100 17k 8k ENCODE ENCODE Test Circuit 1. Equivalent ENCODE Input VCC 100 DIGITAL OUTPUT Test Circuit 2. Equivalent Digital Output Q1 NPN VREF OUTPUT VCC VCC Test Circuit 3. Equivalent Voltage Reference Output VCC AIN2 7k 50 7k 5k 5k AIN1 Test Circuit 4. Equivalent Analog Input DEFINITION OF TERMS Analog Bandwidth The analog input frequency at which the spectral power of the fundamental frequency (as determined by the FFT analysis) is reduced by 3 dB. Aperture Delay The delay between the 50% point on the rising edge of the ENCODE command and the instant at which the analog input is sampled. Aperture Uncertainty (Jitter) The sample-to-sample variation in aperture delay. Differential Nonlinearity The deviation of any code from an ideal 1 LSB step. ENCODE Pulsewidth/Duty Cycle Pulsewidth high is the minimum amount of time that the ENCODE pulse should be left in logic “1” state to achieve rated performance; pulsewidth low is the minimum time ENCODE pulse should be left in low state. At a given clock rate, these specs define an acceptable ENCODE duty cycle. Harmonic Distortion The ratio of the rms signal amplitude to the rms value of the worst harmonic component. Integral Nonlinearity The deviation of the transfer function from a reference line measured in fractions of 1 LSB using a “best straight line” determined by a least square curve fit. Minimum Conversion Rate The ENCODE rate at which the SNR of the lowest analog signal frequency drops by no more than 3 dB below the guaranteed limit. Maximum Conversion Rate The ENCODE rate at which parametric testing is performed. Output Propagation Delay The delay between the 50% point of the rising edge of ENCODE command and the time when all output data bits are within valid logic levels. Power Supply Rejection Ratio The ratio of a change in output offset voltage to a change in power supply voltage. Signal-to-Noise-and-Distortion (SINAD) The ratio of the rms signal amplitude (set at 1 dB below full-scale) to the rms value of the sum of all other spectral components, excluding the first six harmonics and dc. [May be reported in dBc (i.e., degrades as signal levels are lowered) or in dBFS (always related back to converter full-scale).] Signal-to-Noise Ratio (without Harmonics) The ratio of the rms signal amplitude (set at 1 dB below full-scale) to the rms value of the sum of all other spectral components, excluding the first six harmonics and dc. [May be reported in dBc (i.e., degrades as signal levels are lowered) or in dBFS (always related back to converter full-scale).] Spurious-Free Dynamic Range The ratio of the rms signal amplitude to the rms value of the peak spurious spectral component. The peak spurious component may or may not be a harmonic. [May be reported in dBc (i.e., degrades as signal levels is lowered) or in dBFS (always related back to converter full-scale).] Two-Tone Intermodulation Distortion Rejection The ratio of the rms value of either input tone to the rms value of the worst third order intermodulation product; reported in dBc. Voltage Standing Wave Ratio (VSWR) The ratio of the amplitude of the electric field at a voltage maximum to that at an adjacent voltage minimum. – Equivalent Circuits |
Nº de peça semelhante - AD10201 |
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Descrição semelhante - AD10201 |
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