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SPC5644AF0MLU2 Datasheet(PDF) 91 Page - Freescale Semiconductor, Inc |
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SPC5644AF0MLU2 Datasheet(HTML) 91 Page - Freescale Semiconductor, Inc |
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91 / 138 page  MPC5644A Microcontroller Data Sheet, Rev. 7 Freescale Semiconductor 91 Table 29. eQADC single ended conversion specifications (operating) Symbol C Parameter Value Unit min max OFFNC CC C Offset error without calibration 0 160 Counts OFFWC CC C Offset error with calibration –4 4 Counts GAINNC CC C Full scale gain error without calibration –160 0 Counts GAINWC CC C Full scale gain error with calibration –4 4 Counts IINJ CC T Disruptive input injection current 1, 2, 3, 4 1 Below disruptive current conditions, the channel being stressed has conversion values of 0x3FF for analog inputs greater then VRH and 0x0 for values less then VRL. Other channels are not affected by non-disruptive conditions. 2 Exceeding limit may cause conversion error on stressed channels and on unstressed channels. Transitions within the limit do not affect device reliability or cause permanent damage. 3 Input must be current limited to the value specified. To determine the value of the required current-limiting resistor, calculate resistance values using VPOSCLAMP = VDDA + 0.5 V and VNEGCLAMP = – 0.3 V, then use the larger of the calculated values. 4 Condition applies to two adjacent pins at injection limits. –3 3 mA EINJ CC T Incremental error due to injection current5,6 5 Performance expected with production silicon. 6 All channels have same 10 k <Rs<100k; Channel under test has Rs=10 k; IINJ=IINJMAX,IINJMIN –4 4 Counts TUE8 CC C Total unadjusted error (TUE) at 8 MHz –4 46 Counts TUE16 CC C Total unadjusted error at 16 MHz –8 8 Counts Table 30. eQADC differential ended conversion specifications (operating) Symbol C Parameter Value Unit min max GAINVGA11 CC – Variable gain amplifier accuracy (gain=1)2 CC C INL 8 MHz ADC –4 4 Counts 3 CC C 16 MHz ADC –8 8 Counts CC C DNL 8 MHz ADC –34 34 Counts CC C 16 MHz ADC –34 34 Counts |
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