STM32L476XX Datasheet, PDF (166/232 Pages) STMicroelectronics – Ultra-low-power with FlexPowerControl

Electrical characteristics
STM32L476xx
Table 70. DAC accuracy⁽¹⁾ (continued)
Symbol
Parameter
Conditions
Min
Typ
Max Unit
Gain
Gain error⁽⁵⁾
DAC output buffer ON
CL ≤ 50 pF, RL ≥ 5 kΩ
DAC output buffer OFF
CL ≤ 50 pF, no RL
-
-
±0.5
%
-
-
±0.5
TUE
TUECal
SNR
THD
SINAD
ENOB
Total
unadjusted
error
DAC output buffer ON
CL ≤ 50 pF, RL ≥ 5 kΩ
DAC output buffer OFF
CL ≤ 50 pF, no RL
Total
unadjusted
error after
calibration
DAC output buffer ON
CL ≤ 50 pF, RL ≥ 5 kΩ
Signal-to-noise
ratio
DAC output buffer ON
CL ≤ 50 pF, RL ≥ 5 kΩ
1 kHz, BW 500 kHz
DAC output buffer OFF
CL ≤ 50 pF, no RL, 1 kHz
BW 500 kHz
Total harmonic
distortion
DAC output buffer ON
CL ≤ 50 pF, RL ≥ 5 kΩ, 1 kHz
DAC output buffer OFF
CL ≤ 50 pF, no RL, 1 kHz
Signal-to-noise
and distortion
ratio
DAC output buffer ON
CL ≤ 50 pF, RL ≥ 5 kΩ, 1 kHz
DAC output buffer OFF
CL ≤ 50 pF, no RL, 1 kHz
Effective
number of bits
DAC output buffer ON
CL ≤ 50 pF, RL ≥ 5 kΩ, 1 kHz
DAC output buffer OFF
CL ≤ 50 pF, no RL, 1 kHz
-
-
±30
LSB
-
-
±12
-
-
±23 LSB
-
71.2
-
dB
-
71.6
-
-
-78
-
dB
-
-79
-
-
70.4
-
dB
-
71
-
-
11.4
-
bits
-
11.5
-
1. Guaranteed by design.
2. Difference between two consecutive codes - 1 LSB.
3. Difference between measured value at Code i and the value at Code i on a line drawn between Code 0 and last Code 4095.
4. Difference between the value measured at Code (0x001) and the ideal value.
5. Difference between ideal slope of the transfer function and measured slope computed from code 0x000 and 0xFFF when
buffer is OFF, and from code giving 0.2 V and (V_REF+ – 0.2) V when buffer is ON.
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