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Zakładka z wyszukiwarką danych komponentów |
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ADS1606 Arkusz danych(PDF) 6 Page - Texas Instruments |
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ADS1606 Arkusz danych(HTML) 6 Page - Texas Instruments |
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6 / 37 page  ADS1625 ADS1626 SBAS280E − JUNE 2003 − REVISED MAY 2007 www.ti.com 6 DEFINITIONS Absolute Input Voltage Absolute input voltage, given in volts, is the voltage of each analog input (AINN or AINP) with respect to AGND. Aperture Delay Aperture delay is the delay between the rising edge of CLK and the sampling of the input signal. Common-Mode Input Voltage Common-mode input voltage (VCM) is the average voltage of the analog inputs: (AINP ) AINN) 2 Differential Input Voltage Differential input voltage (VIN) is the voltage difference between the analog inputs: (AINP−AINN). Differential Nonlinearity (DNL) DNL, given in least-significant bits (LSB) of the output code, is the maximum deviation of the output code step sizes from the ideal value of 1LSB. Full-Scale Range (FSR) FSR is the difference between the maximum and minimum measurable input signals. For the ADS1625, FSR = 2 × 1.467VREF. Gain Error Gain error, given in %, is the error of the full-scale input signal with respect to the ideal value. Gain Error Drift Gain error drift, given in ppm/ _C, is the drift over temperature of the gain error. The gain error is specified as the larger of the drift from ambient (TA = 25_C) to the minimum or maximum operating temperatures. Integral Nonlinearity (INL) INL, given in least significant bits (LSB) of the output code, is the maximum deviation of the output codes from a best- fit line. Intermodulation Distortion (IMD) IMD, given in dB, is measured while applying two input signals of the same magnitude, but with slightly different frequencies. It is calculated as the difference between the rms amplitude of the input signal to the rms amplitude of the peak spurious signal. Offset Error Offset Error, given in % of FSR, is the output reading when the differential input is zero. Offset Error Drift Offset error drift, given in ppm of FSR/ _C, is the drift over temperature of the offset error. The offset error is specified as the larger of the drift from ambient (TA = 25_C) to the minimum or maximum operating temperatures. Signal-to-Noise Ratio (SNR) SNR, given in dB, is the ratio of the rms value of the input signal to the sum of all the frequency components below fCLK/2 (the Nyquist frequency) excluding the first six harmonics of the input signal and the dc component. Signal-to-Noise and Distortion (SINAD) SINAD, given in dB, is the ratio of the rms value of the input signal to the sum of all the frequency components below fCLK/2 (the Nyquist frequency) including the harmonics of the input signal but excluding the dc component. Spurious Free Dynamic Range (SFDR) SFDR, given in dB, is the difference between the rms amplitude of the input signal to the rms amplitude of the peak spurious signal. Total Harmonic Distortion (THD) THD, given in dB, is the ratio of the sum of the rms value of the first six harmonics of the input signal to the rms value of the input signal. |
Podobny numer części - ADS1606 |
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Podobny opis - ADS1606 |
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