Datasheet

DS10198 Rev 8 193/270
STM32L476xx Electrical characteristics
238
.
Table 83. DAC accuracy
(1)
Symbol Parameter Conditions Min Typ Max Unit
DNL
Differential non
linearity
(2)
DAC output buffer ON - - ±2
LSB
DAC output buffer OFF - - ±2
- monotonicity 10 bits guaranteed
INL
Integral non
linearity
(3)
DAC output buffer ON
CL  50 pF, RL  5 k
--±4
DAC output buffer OFF
CL  50 pF, no RL
--±4
Offset
Offset error at
code 0x800
(3)
DAC output buffer ON
CL  50 pF, RL  5 k
V
REF+
= 3.6 V - - ±12
V
REF+
= 1.8 V - - ±25
DAC output buffer OFF
CL  50 pF, no RL
--±8
Offset1
Offset error at
code 0x001
(4)
DAC output buffer OFF
CL  50 pF, no RL
--±5
OffsetCal
Offset Error at
code 0x800
after calibration
DAC output buffer ON
CL  50 pF, RL  5 k
V
REF+
= 3.6 V - - ±5
V
REF+
= 1.8 V - - ±7
Gain Gain error
(5)
DAC output buffer ON
CL  50 pF, RL  5 k
--±0.5
%
DAC output buffer OFF
CL  50 pF, no RL
--±0.5
TUE
Tot a l
unadjusted
error
DAC output buffer ON
CL  50 pF, RL  5 k
--±30
LSB
DAC output buffer OFF
CL  50 pF, no RL
--±12
TUECal
Tot a l
unadjusted
error after
calibration
DAC output buffer ON
CL  50 pF, RL  5 k
--±23LSB
SNR
Signal-to-noise
ratio
DAC output buffer ON
CL  50 pF, RL  5 k
1 kHz, BW 500 kHz
-71.2-
dB
DAC output buffer OFF
CL  50 pF, no RL, 1 kHz
BW 500 kHz
-71.6-
THD
Total harmonic
distortion
DAC output buffer ON
CL  50 pF, RL  5 k, 1 kHz
--78-
dB
DAC output buffer OFF
CL  50 pF, no RL, 1 kHz
--79-
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