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. Characteristic Min. Typ. † Max. Units Conditions
DSB01 VLSB Step Size — (VDACREF+-VDACREF-)/256 — V
DSB02 VACC Absolute Accuracy(1) -2.5 1.9 7 LSb
DSB03* RUNIT Unit Resistor Value — 20 — kΩ
DSB04* TST Settling Time(2) — 10 — μs
DSB05 VDBO DAC Buffer Offset — 20 45 mV
DSB06 INL Integral Nonlinearity -1.7 1 1.9 LSb 0x09 ≤ DACxDATL ≥ 0x246
DSB07 DNL Differential Nonlinearity -0.5 0.4 1.2 LSb 0x09 ≤ DACxDATL ≥ 0x246
DSB08 EOFF Offset Error -0.8 1.4 2.5 LSb 0x09 ≤ DACxDATL ≥ 0x246
DSB09 EGN Gain Error -1.7 -1.2 0.8 LSb 0x09 ≤ 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