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ADS7844NB Datasheet(PDF) 6 Page - Burr-Brown (TI) |
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ADS7844NB Datasheet(HTML) 6 Page - Burr-Brown (TI) |
6 / 14 page ® 6 ADS7844 0 –20 –40 –60 –80 –100 –120 FREQUENCY SPECTRUM (4096 Point FFT; fIN = 1,129Hz, –0.2dB) 0 62.5 15.6 46.9 31.3 Frequency (kHz) 0 –20 –40 –60 –80 –100 –120 FREQUENCY SPECTRUM (4096 Point FFT; fIN = 10.6kHz, –0.2dB) 0 62.5 15.6 46.9 31.3 Frequency (kHz) SIGNAL-TO-NOISE RATIO AND SIGNAL-TO- (NOISE+DISTORTION) vs INPUT FREQUENCY 10 1 100 Input Frequency (kHz) 78 74 70 66 62 58 54 SINAD SNR THD SFDR SPURIOUS FREE DYNAMIC RANGE AND TOTAL HARMONIC DISTORTION vs INPUT FREQUENCY 10 1 100 Input Frequency (kHz) 90 85 80 75 70 65 60 55 50 –90 –85 –80 –75 –70 –65 –60 –55 –50 EFFECTIVE NUMBER OF BITS vs INPUT FREQUENCY 10 1 100 Input Frequency (kHz) 12.0 11.5 11.0 10.5 10.0 9.5 9.0 TYPICAL PERFORMANCE CURVES:+2.7V At TA = +25°C, +VCC = +2.7V, VREF = +2.5V, fSAMPLE = 125kHz, and fCLK = 16 • fSAMPLE = 2MHz, unless otherwise noted. CHANGE IN SIGNAL-TO-(NOISE+DISTORTION) vs TEMPERATURE –20 –40 100 Temperature (˚C) 0.2 0.0 –0.2 –0.4 –0.6 –0.8 0.4 0 20 40 60 80 f IN = 10kHz, –0.2dB |
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