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TMS570LS Scheda tecnica(PDF) 97 Page - Texas Instruments |
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TMS570LS Scheda tecnica(HTML) 97 Page - Texas Instruments |
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97 / 107 page  TMS570LS20206-EP, TMS570LS20216-EP www.ti.com SPNS209A – JUNE 2012 – REVISED AUGUST 2012 7.18.3 Operating Characteristics Over Full Ranges Of Recommended Operating Conditions Table 7-29. Operating Characteristics Over Full Ranges Of Recommended Operating Conditions(1) Parameter Description/Conditions Min TYP Max Unit Rmux (2) Analog input mux on- 250 Ω resistance Rsamp (2) ADC sample switch on- 150 250 Ω resistance Cmux Input mux capacitance 16 pF Csamp ADC sample capacitance 11 12 13 pF IAIL Analog input leakage Input leakage per ADC input pin –200 200 nA current IADREFHI (2) ADREFHI input current ADREFHI = 3.6 V, ADREFLO = VSSAD 5 mA CR Conversion range over ADREFHI - ADREFLO 3 3.6 V which specified accuracy is maintained EDNL Differential nonlinearity Difference between the actual step width and the ideal value. ±3.8 LSB error EINL Integral nonlinearity error Maximum deviation from the best straight line through the MibADC. ±3.7 LSB MibADC transfer characteristics, excluding the quantization error. ETOT Total error/Absolute Maximum value of the difference Executing periodic ±8(3) LSB accuracy between an analog value and the ideal internal calibration midstep value. No calibration ±15 LSB (1) 1 LSB = (ADREFHI – ADREFLO)/ 2 12 for the MibADC (2) This parameter is characterized from -40°C to 125°C only. (3) An periodic internal offset calibration is required to achieve the absolute accuracy. Please refer to the Analog To Digital Converter (ADC) Module chapter of the TMS570LS Series Microcontroller Technical Reference Manual (SPNU489) and Interfacing the Embedded 12-bit ADC (SPNA129) for more information. Copyright © 2012, Texas Instruments Incorporated Peripheral and Electrical Specifications 97 Submit Documentation Feedback Product Folder Link(s): TMS570LS20206-EP TMS570LS20216-EP |
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