36.18 DAC

VDD = 3V, unless stated otherwise.

Accuracy characteristics calculated based on 5% to 95% range of the DAC.

Table 36-29. Power Supply, Reference, and Input Range
Symbol Description Min. Typ. Max. Unit
VDD Supply voltage(1) 1.8 3 5.5 V
RLoad Resistive external load 5 - - kΩ
CLoad Capacitive external load - - 30 pF
VOUT Output voltage range 0.2 - VDD-0.2 V
IOUT Output sink/source - 1 - mA
Note: 1. The supply voltage must meet the VDD specification for the VREF level used as DAC reference.
Table 36-30. Clock and Timing Characteristics
Symbol Description Conditions Min. Typ. Max. Unit
fDAC Maximum conversion rate 0.55V ≤ VREF ≤ 2.5V - 350 - ksps
VREF = 4.3V - 270 - ksps
Table 36-31. Accuracy Characteristics(3)
Symbol Description Conditions Min. Typ. Max. Unit
RES Resolution - 8 bits
INL Integral nonlinearity 0.55V ≤ VREF ≤ 4.3V -1.2 0.3 1.2 LSb
DNL Differential nonlinearity 0.55V ≤ VREF ≤ 4.3V -1 0.25 1 LSb
EOFF(1) Offset error 0.55V ≤ VREF ≤ 1.5V -25 -3 20 mV
VREF = 2.5V -30 -6 10
VREF = 4.3V -40 -10 0
EGAIN(2) Gain error VREF = 1.1V, VDD = 3.0V, T = 25°C - ±1 - LSb
0.55V ≤ VREF ≤ 4.3V -10 -1 10
Note:
  1. Offset including the DAC output buffer offset, this measured at DAC output pin.
  2. VREF accuracy is included in the Gain accuracy specification.
  3. These values are based on characterization and not covered by production test limits.