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TMS320F28375DPZP Datasheet(PDF) 106 Page - Texas Instruments |
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TMS320F28375DPZP Datasheet(HTML) 106 Page - Texas Instruments |
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106 / 222 page  ADC Ron Switch VREFLO Ch Cp ADCINx AC Rs ADC Ron Switch ADCINxN Ch Cp ADCINxP AC Rs Ron Switch Rs Cp VSSA 106 TMS320F28379D, TMS320F28378D, TMS320F28377D TMS320F28376D, TMS320F28375D, TMS320F28374D SPRS880K – DECEMBER 2013 – REVISED NOVEMBER 2018 www.ti.com Submit Documentation Feedback Product Folder Links: TMS320F28379D TMS320F28378D TMS320F28377D TMS320F28376D TMS320F28375D TMS320F28374D Specifications Copyright © 2013–2018, Texas Instruments Incorporated (1) For an explanation of the input qualifier parameters, see Table 5-24. Table 5-46. ADCEXTSOC Timing Requirements(1) MIN MAX UNIT tw(INT) Pulse duration, INT input low/high Synchronous 2tc(SYSCLK) cycles With qualifier tw(IQSW) + tw(SP) + 1tc(SYSCLK) cycles 5.10.1.2.1 ADC Input Models NOTE ADC channels ADCINA0, ADCINA1, and ADCINB1 have a 50-kΩ pulldown resistor to VSSA. For differential operation, the ADC input characteristics are given by Table 5-47 and Figure 5-33. Table 5-47. Differential Input Model Parameters DESCRIPTION VALUE (16-BIT MODE) Cp Parasitic input capacitance See Table 5-49 Ron Sampling switch resistance 700 Ω Ch Sampling capacitor 16.5 pF Rs Nominal source impedance 50 Ω Figure 5-33. Differential Input Model For single-ended operation, the ADC input characteristics are given by Table 5-48 and Figure 5-34. Table 5-48. Single-Ended Input Model Parameters DESCRIPTION VALUE (12-BIT MODE) Cp Parasitic input capacitance See Table 5-49 Ron Sampling switch resistance 425 Ω Ch Sampling capacitor 14.5 pF Rs Nominal source impedance 50 Ω Figure 5-34. Single-Ended Input Model |
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