48.4.11 8-Bit DAC Specifications

Table 48-16. 8-bit Digital-to-Analog Converter

Standard Operating Conditions (unless otherwise stated)

VDD = 3.0V, TA = 25°C

Param No.Sym.CharacteristicMin.Typ. †Max.UnitsConditions
DSB01VLSBStep Size(VDACREF+-VDACREF-)/256V
DSB02VACCAbsolute Accuracy(1)-2.51.97LSb
DSB03*RUNITUnit Resistor Value20
DSB04*TSTSettling Time(2)10μs
DSB05VDBODAC Buffer Offset2045mV
DSB06INLIntegral Nonlinearity-1.711.9LSb0x09 ≤ DACxDATL ≥ 0x246
DSB07DNLDifferential Nonlinearity-0.50.41.2LSb0x09 ≤ DACxDATL ≥ 0x246
DSB08EOFFOffset Error-0.81.42.5LSb0x09 ≤ DACxDATL ≥ 0x246
DSB09EGNGain Error-1.7-1.20.8LSb0x09 ≤ DACxDATL ≥ 0x246

* These parameters are characterized but not tested.

† Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not tested.

Note:
  1. Absolute accuracy = Offset Error + Gain Error + DAC Buffer Error (EOFF + EGN + VDBO)
  2. Settling time measured while DACR[7:0] transitions from ‘b00000000 to ‘b11111111