Digital to Analog Converter (DAC) Characteristics

Table 1. Operating Conditions
Symbol Parameter Conditions Min. Typ. Max. Units
VDDANA Analog supply voltage   1.62 - 3.63 V
AVREF External reference voltage   1.0 - VDDANA-0.6 V
INT1V(2)   - 1 - V
VDDANA   - VDDANA - V
  Linear output voltage range   0.05 - VDDANA-0.05 V
  Minimum resistive load   5 - -
  Maximum capacitance load   - - 100 pF
IDD DC supply current (1) Voltage pump disabled - 160 230 μA
Notes:
  1. 1.These values are based on characterization, and are not covered by test limits in production.
  2. 2.It is the buffered internal reference of 1.0V derived from the internal 1.1V bandgap reference.
Table 2. Clock and Timing
Symbol Parameter Conditions Min. Typ. Max. Units
  Conversion rate Cload = 100pF
Rload > 5kΩ Normal mode - - 350 ksps
For ΔDATA = +/-1 - - 1000
  Startup time VDDNA > 2.6V - - 2.85 μs
VDDNA < 2.6V - - 10 μs
Note: The values in this table are based on simulation, and are not covered by test limits in production or characterization.
Table 3. Accuracy Characteristics (Device Variant A)
Symbol Parameter Conditions (1) Min. Typ. Max. Units
RES Input resolution   - - 10 Bits
INL Integral non-linearity VREF = Ext 1.0V VDD = 1.6V 0.75 1.1 2.5 LSB
VDD = 3.6V 0.6 1.2 1.5
VREF = VDDANA VDD = 1.6V 1.4 2.2 2.5
VDD = 3.6V 0.9 1.4 1.5
VREF = INT1V VDD = 1.6V 0.75 1.3 1.5
VDD = 3.6V 0.8 1.2 1.5
DNL Differential non-linearity VREF = Ext 1.0V VDD = 1.6V ±0.9 ±1.2 ±1.5 LSB
VDD = 3.6V ±0.9 ±1.1 ±1.2
VREF = VDDANA VDD = 1.6V ±1.1 ±1.5 ±1.7
VDD = 3.6V ±1.0 ±1.1 ±1.2
VREF = INT1V VDD = 1.6V ±1.1 ±1.4 ±1.5
VDD = 3.6V ±1.0 ±1.5 ±1.6
GE Gain error Ext. VREF ±1.5 ±5 ±10 mV
OE Offset error Ext. VREF ±2 ±3 ±6 mV
Note:
  1. 1.All values are measured using a conversion rate of 35 ksps .
Table 4. Accuracy Characteristics (Device Variant B)
Symbol Parameter Conditions (1) Min. Typ. Max. Units
RES Input resolution - - - - 10 Bits
INL Integral non-linearity VREF = Ext 1.0V VDD = 1.6V 0.75 1.1 2.5 LSB
VDD = 3.6V 0.6 1.2 1.5
VREF = VDDANA VDD = 1.6V 1.4 2.2 2.5
VDD = 3.6V 0.9 1.4 1.5
VREF = INT1V VDD = 1.6V 0.75 1.3 3.1
VDD = 3.6V 0.8 1.2 2.7
DNL Differential non-linearity VREF = Ext 1.0V VDD = 1.6V ±0.9 ±1.2 ±1.5 LSB
VDD = 3.6V ±0.9 ±1.1 ±1.2
VREF = VDDANA VDD = 1.6V ±1.1 ±1.5 ±1.7
VDD = 3.6V ±1.0 ±1.1 ±1.2
VREF = INT1V VDD = 1.6V ±1.1 ±1.4 ±3.0
VDD = 3.6V ±1.0 ±1.5 ±2.9
GE Gain error Ext. VREF ±1.5 ±5 ±10 mV
OE Offset error Ext. VREF ±2 ±3 ±6 mV
Note:
  1. 1.All values are measured using a conversion rate of 35 ksps.