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ADS7253IPW 数据表(PDF) 57 Page - Texas Instruments |
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ADS7253IPW 数据表(HTML) 57 Page - Texas Instruments |
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57 / 71 page ![]() ±150 ±120 ±90 ±60 ±30 0 0 100 200 300 400 500 Input Frequency (kHz) C005 ±150 ±120 ±90 ±60 ±30 0 0 100 200 300 400 500 Input Frequency (dB) C007 ±200 ±180 ±160 ±140 ±120 ±100 ±80 ±60 ±40 ±20 0 0 60 120 180 240 300 Input Frequency (kHz) C303 ADS8353, ADS7853, ADS7253 www.ti.com SBAS584B – OCTOBER 2013 – REVISED AUGUST 2014 9.2.2.3 Application Curves To minimize external components and to maximize the dynamic range of the ADC, device is configured to operate with internal reference (CFR.B6 = 1) and 2 x VREF_x input full scale range (CFR.B9 = 1). Figure 111, Figure 112, and Figure 113 show the FFT plots and test results obtained with the ADS8353, ADS7853 and ADS7253, respectively, operating at full throughput with a 32-CLK interface and the circuit configuration of Figure 109. SNR = 83.1 dB THD = –95.5 dB fIN = 100.2 kHz SNR = 79.6 dB THD = –90.9 dB fIN = 100.2 kHz Figure 111. ADS8353 in 32-CLK Interface Mode Figure 112. ADS7853 in 32-CLK Interface Mode SNR = 72.9 dB THD = –85.8 dB fIN = 100.2 kHz Figure 113. ADS7253 in 32-CLK Interface Mode Copyright © 2013–2014, Texas Instruments Incorporated Submit Documentation Feedback 57 Product Folder Links: ADS8353 ADS7853 ADS7253 |
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