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ADS7866I Datasheet(PDF) 11 Page - Texas Instruments |
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ADS7866I Datasheet(HTML) 11 Page - Texas Instruments |
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11 / 24 page  www.ti.com TYPICAL CHARACTERISTICS ADS7866 −100 −90 −80 −70 −60 −50 −40 −30 −20 −10 0 0 10 20 30 40 50 60 70 80 90 100 fi − Input Frquency − kHz VDD = 1.6 V, fSAMPLE = 200 kSPS, fi = 30 kHz, SNR = 72.31 dB, SINAD = 71.97 dB, THD (9) = −83.18 dB, SFDR = 86.83 dB −100 −90 −80 −70 −60 −50 −40 −30 −20 −10 0 0 5 10 15 20 25 30 35 40 45 50 fi − Input Frquency − kHz VDD = 1.2 V, fSAMPLE = 100 kSPS, fi = 30 kHz, SNR = 71.42 dB, SINAD = 67.62 dB, THD (9) = −69.96 dB, SFDR = 75.14 dB −82 −80 −78 −76 −74 −72 −70 −68 −66 −64 −62 −60 −58 −56 1 10 100 1000 VDD = 3.6V, 200 KSPS VDD = 2.5 V, 200 KSPS VDD = 1.6 V, 200 KSPS VDD = 1.2 V, 100 KSPS THD Using 2nd − 10th harmonics, TA = 25°C fi − Input Frequency − kHz 67 67.5 68 68.5 69 69.5 70 70.5 71 71.5 72 72.5 73 1 10 100 1000 VDD = 3.6 V, 200 KSPS VDD = 2.5 V, 200 KSPS VDD = 1.6 V, 200 KSPS VDD = 1.2 V, 100 KSPS fi − Input Frequency − kHz 57 59 61 63 65 67 69 71 73 1 10 100 1000 VDD = 3.6 V, 200 KSPS fi − Input Frequency − kHz VDD = 2.5 V, 200 KSPS VDD = 1.6 V, 200 KSPS VDD = 1.2 V, 100 KSPS ADS7866 ADS7867 ADS7868 SLAS465 – JUNE 2005 FFT (8192 Points) Figure 2. FFT (8192 Points) Figure 3. SIGNAL-TO-NOISE RATIO SIGNAL-TO-NOISE TOTAL HARMONIC DISTORTION vs AND DISTORTION vs INPUT FREQUENCY vs INPUT FREQUENCY INPUT FREQUENCY Figure 4. Figure 5. Figure 6. 11 |
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