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AD7450AR Folha de dados(PDF) 7 Page - Analog Devices |
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AD7450AR Folha de dados(HTML) 7 Page - Analog Devices |
7 / 24 page REV. PrJ PRELIMINARY TECHNICAL DATA –7– AD7450 PERFORMANCE CURVES TPC 1 and TPC 2 show the typical FFT plots for the AD7450 with VDD of 5V and 3V, 1MHz and 833kHz sam- pling frequency respectively and an input frequency of 300kHz. -120 -100 -80 -60 -40 -20 0 0 50 100 150 200 250 300 350 400 450 500 FREQUENCY (kHz) 8192 POINT FFT FSAMPLE = 1MSPS FIN = 300kHz SINAD = 71.7dB THD = -82.8dB SFDR = -85.3dB TPC 1. AD7450 Dynamic Performance at 1MSPS with VDD =5V -120 -100 -80 -60 -40 -20 0 0 50 100 150 200 250 300 350 FREQUENCY (kHz) 8192 POINT FFT fSAMPLE = 833ksps fIN = 300kHz SINAD = 70.2dB THD = -86dB SFDR = -87.1dB TPC 2. AD7450 Dynamic Performance at 833ksps with VDD = 3V TPC 3 shows the signal-to-(noise+distortion) ratio performance versus the analog input frequency for various supply voltages while sampling at 1MSPS (VDD = 5V±5%) and 833kSPS (VDD = 3V±10%). TITLE 0 0 0 00 0 00 0 0 TPC 3. SINAD vs Analog Input Frequency for Various Supply Voltages TBD TPC 4 shows the power supply rejection ratio versus supply ripple frequency for the AD7450. Here, a 200mV p-p sine wave is coupled onto the VDD supply. A 10nF decoupling capacitor was used on the supply and a 1µF decoupling capacitor was used on VREF. TITLE 0 0 0 00 0 00 0 0 TPC 4. Power Supply Rejection (see Terminology Sec- tion) vs. Supply Ripple Frequency at 5V and 3V TBD |
Nº de peça semelhante - AD7450AR |
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Descrição semelhante - AD7450AR |
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