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MPC5643L 数据表(PDF) 98 Page - Freescale Semiconductor, Inc |
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MPC5643L 数据表(HTML) 98 Page - Freescale Semiconductor, Inc |
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98 / 136 page  MPC5643L Microcontroller Data Sheet, Rev. 8.1 Electrical characteristics Freescale Semiconductor 98 Table 25. ADC conversion characteristics Symbol Parameter Conditions1 1 V DD = 3.3 V, TJ = –40 to +150 °C, unless otherwise specified and analog input voltage from VAGND to VAREF. Min Typ Max Unit fCK SR ADC Clock frequency (depends on ADC configuration) (The duty cycle depends on AD_CK2 frequency) 2 AD_CK clock is always half of the ADC module input clock defined via the auxiliary clock divider for the ADC. —3 — 60 MHz fs SR Sampling frequency — — — 983.6 3 KHz tsample D Sample time4 60 MHz 383 — — ns tconv D Conversion time5 60 MHz 600 — — ns CS 6 D ADC input sampling capacitance — — — 7.32 pF CP1 6 D ADC input pin capacitance 1 — — — 5(7) pF CP2 6 D ADC input pin capacitance 2 — — — 0.8 pF RSW1 6 D Internal resistance of analog source VREF range = 4.5 to 5.5 V — — 0.3 k VREF range = 3.0 to 3.6 V — — 875 RAD 6 D Internal resistance of analog source — — — 825 INL P Integral non linearity — –3 — 3 LSB DNL P Differential non linearity8 —–1 — 2 LSB OFS T Offset error — –6 — 6 LSB GNE T Gain error — –6 — 6 LSB IS1WINJ (single ADC channel) Max leakage 150C — — 250 nA Max positive/negative injection –3 — 3 mA IS1WWINJ (double ADC channel) Max leakage 150C — — 300 nA Max positive/negative injection |Vref_ad0 - Vref_ad1| < 150mV –3.6 — 3.6 mA SNR T Signal-to-noise ratio Vref = 3.3V 67 — — dB SNR T Signal-to-noise ratio Vref = 5.0V 69 — — dB THD T Total harmonic distortion — -65 — — dB SINAD T Signal-to-noise and distortion — 65 — — dB ENOB T Effective number of bits — 10.5 — — bits TUEIS1WINJ T Total unadjusted error for IS1WINJ (single ADC channels) Without current injection –6 — 6 LSB With current injection –8 — 8 LSB TUEIS1WWINJ P Total unadjusted error for IS1WWINJ (double ADC channels) Without current injection –8 — 8 LSB T With current injection –10 — 10 LSB |
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