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TMS320F28375DPZP Scheda tecnica(PDF) 101 Page - Texas Instruments |
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TMS320F28375DPZP Scheda tecnica(HTML) 101 Page - Texas Instruments |
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101 / 226 page ![]() 8.10.1.1.1 Signal Mode The ADC supports two signal modes: single-ended and differential. In single-ended mode, the input voltage to the converter is sampled through a single pin (ADCINx), referenced to VREFLO. In differential signaling mode, the input voltage to the converter is sampled through a pair of input pins, one of which is the positive input (ADCINxP) and the other is the negative input (ADCINxN). The actual input voltage is the difference between the two (ADCINxP – ADCINxN). Figure 8-31 shows the differential signaling mode. Figure 8-32 shows the single- ended signaling mode. VREFHI VREFLO (VSSA) VREFHI/2 Pin Voltages ADCINxP ADCINxN ADC ADCINxN ADCINxP VREFLO VREFHI VREFHI VREFLO (VSSA) Input Common Mode VREFHI/2 ± 50mV Vin Common Mode +VREFHI -VREFHI 0 Effective Input Voltage ADC Vin 2 n - 1 0 Digital Output ADC Vin Figure 8-31. Differential Signaling Mode www.ti.com TMS320F28379D, TMS320F28379D-Q1, TMS320F28378D, TMS320F28377D TMS320F28377D-Q1, TMS320F28376D, TMS320F28375D, TMS320F28374D SPRS880O – DECEMBER 2013 – REVISED FEBRUARY 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 101 Product Folder Links: TMS320F28379D TMS320F28379D-Q1 TMS320F28378D TMS320F28377D TMS320F28377D-Q1 TMS320F28376D TMS320F28375D TMS320F28374D |
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