M16C User Manual.pdf

Electrical characteristics (Vcc = 5V)Mitsubishi microcomputersM16C / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERTable 1.26.4. A-D conversion characteristics (referenced to VCC = AVCC = VREF = 5V, Vss = AVSS = 0Vat Ta = 25 o C, f(XIN) = 16MHZ unless otherwise specified)VCC = 5VStandardSymbol Parameter Measuring conditionMin. Typ. Max.UnitResolutionVREF = VCC10 BitsAbsolute Sample & hold function not available VREF = VCC = 5V±3 LSBaccuracyAN0 to AN7 input±3 LSBSample & hold function available(10bit) VREF =VCC ANEX0, ANEX1 input,= 5V External op-amp connection mode±7 LSBSample & hold function available(8bit) VREF = VCC = 5V ±2 LSBRLADDER Ladder resistanceVREF = VCC1040 kΩtCONV Conversion time(10bit)3.3µstCONV Conversion time(8bit) 2.8µstSAMP Sampling time 0.3µsVREF Reference voltage2 VCC VVIA Analog input voltage0 VREF VNote: Divide the frequency if f(XIN) exceeds 10 MHz, and make ØAD equal to or lower than 10 MHz.Table 1.26.5. D-A conversion characteristics (referenced to VCC = 5V, VSS = AVSS = 0V, VREF = 5Vat Ta = 25 o C, f(XIN) = 16MHZ unless otherwise specified)Symbol Parameter Measuring conditionStandardMin. Typ. Max.UnitResolutionAbsolute accuracy81.0Bits%tsu Setup time3 µsRO Output resistance4 10 20 kΩ kIVREF Reference power supply input current (Note)1.5 mANote: This applies when using one D-A converter, with the D-A register for the unused D-A converter set to “0016”.The A-D converter's ladder resistance is not included.Also, when DA register contents are not “00”, the current IVREF always flows even though Vref mayhave been set to be “unconnected” by the A-D control register.185