Texas Instruments SimpleLink CC2652RB, Manual

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8.15.2 DAC
8.15.2.1 Digital-to-Analog Converter (DAC) Characteristics
T
c
= 25 °C, V
DDS
= 3.0 V, unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
General Parameters
Resolution 8 Bits
V
DDS
Supply voltage
Any load, any V
REF
, pre-charge OFF, DAC charge-
pump ON
1.8 3.8
V External Load
(4)
, any V
REF
, pre-charge OFF, DAC
charge-pump OFF
2.0 3.8
Any load, V
REF
= DCOUPL, pre-charge ON 2.6 3.8
F
DAC
Clock frequency
Buffer ON (recommended for external load) 16 250
kHz
Buffer OFF (internal load) 16 1000
Voltage output settling
time
V
REF
= VDDS, buffer OFF, internal load 13
1 / F
DAC
V
REF
= VDDS, buffer ON, external capacitive load = 20
pF
(3)
13.8
External capacitive load 20 200 pF
External resistive load 10 MΩ
Short circuit current 400 µA
Z
MAX
Max output impedance
Vref = VDDS, buffer ON,
CLK 250 kHz
VDDS = 3.8 V, DAC charge-pump OFF 50.8
kΩ
VDDS = 3.0 V, DAC charge-pump ON 51.7
VDDS = 3.0 V, DAC charge-pump OFF 53.2
VDDS = 2.0 V, DAC charge-pump ON 48.7
VDDS = 2.0 V, DAC charge-pump OFF 70.2
VDDS = 1.8 V, DAC charge-pump ON 46.3
VDDS = 1.8 V, DAC charge-pump OFF 88.9
Internal Load - Continuous Time Comparator / Low Power Clocked Comparator
DNL
Differential nonlinearity
V
REF
= VDDS,
load = Continuous Time Comparator or Low Power
Clocked Comparator
F
DAC
= 250 kHz
±1
LSB
(1)
Differential nonlinearity
V
REF
= VDDS,
load = Continuous Time Comparator or Low Power
Clocked Comparator
F
DAC
= 16 kHz
±1.2
Offset error
(2)
Load = Continuous Time
Comparator
V
REF
= VDDS = 3.8 V ±0.64
LSB
(1)
V
REF
= VDDS= 3.0 V ±0.81
V
REF
= VDDS = 1.8 V ±1.27
V
REF
= DCOUPL, pre-charge ON ±3.43
V
REF
= DCOUPL, pre-charge OFF ±2.88
V
REF
= ADCREF ±2.37
Offset error
(2)
Load = Low Power
Clocked Comparator
V
REF
= VDDS= 3.8 V ±0.78
LSB
(1)
V
REF
= VDDS = 3.0 V ±0.77
V
REF
= VDDS= 1.8 V ±3.46
V
REF
= DCOUPL, pre-charge ON ±3.44
V
REF
= DCOUPL, pre-charge OFF ±4.70
V
REF
= ADCREF ±4.11
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CC2652RB
SWRS232D – FEBRUARY 2019 – REVISED FEBRUARY 2021
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