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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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STR720 Scheda tecnica(PDF) 391 Page - STMicroelectronics |
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STR720 Scheda tecnica(HTML) 391 Page - STMicroelectronics |
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391 / 401 page  STR720 - ELECTRICAL CHARACTERISTICS 391/401 Where RIN can be defined by the following formula. All parameters required to describe ADC input pads are reported in the following table. 1. VDD(all) = 1.80 V ± 10%, VDD3(all) = 3.30 V ± 10%, TA = -40 / +85 °C unless otherwise specified. 2. Data based on design guidelines, not tested in production. 3. Data based on design characterization performed on sample devices, not tested in production. 4. Data based on design guidelines and validation, not tested in production. Table 106. ADC Input Characteristics Symbol Parameter Test Conditions(1) Value Unit Min. Typ Max CIN Analog input capacitance(2) See Figure 79. CIN = CP1+CP2+CS -- 5 pF FMOD Modulator frequency(3) (oversampling clock) -- 4 MHz K Equivalent analog input resistor constant(4) See Figure 80. In single channel mode value must be divided by 4. 1728 2160 2592 k Ω⋅MHz RIN Equivalent analog input resistance(4) See Figure 80. FMOD = 4 MHz, round-robin mode. - 540 - k Ω VCM Common mode voltage(2) 1.19 1.25 1.31 V fAIN Analog input bandwidth(2) (FMOD/4096) FMOD = 4 MHz - - 976 Hz ts Conversion time FMOD = 4 MHz 128 ns R IN K 1 F MOD --------------- ⋅ = |
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