Datasheet

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STM32F373xx Electrical characteristics
114
6.3.18 DAC electrical specifications
Table 63. DAC characteristics
Symbol Parameter Conditions Min Typ Max Unit
V
DDA
Analog supply voltage - 2.4 - 3.6 V
V
REF+
Reference supply voltage V
REF+
must always be below V
DDA
2.4 - 3.6 V
V
SSA
Ground - 0 - 0 V
R
LOAD
(1)
Resistive load
DAC
output
buffer ON
Connected to V
SSA
5- -
kΩ
Connected to V
DDA
25 - -
R
O
(1)
Output Impedance DAC output buffer OFF - - 15 kΩ
C
LOAD
(1)
Capacitive load
Maximum capacitive load at DAC_OUT
pin (when the buffer is ON).
-- 50 pF
DAC_OUT
min
(1)
Lower DAC_OUT voltage
with buffer ON
It gives the maximum output excursion
of the DAC.
It corresponds to 12-bit input code
(0x0E0) to (0xF1C) at V
REF+
= 3.6 V
and (0x155) and (0xEAB) at V
REF+
=
2.4 V
0.2 - - V
DAC_OUT
max
(1)
Higher DAC_OUT
voltage with buffer ON
--V
DDA
– 0.2 V
DAC_OUT
min
(1)
Lower DAC_OUT voltage
with buffer OFF
It gives the maximum output excursion
of the DAC.
-0.5 - mV
DAC_OUT
max
(1)
Higher DAC_OUT
voltage with buffer OFF
--V
REF+
– 1LSB V
I
DDVREF+
(3)
DAC DC current
consumption in quiescent
mode (Standby mode)
With no load, worst code (0xF1C) at
V
REF+
= 3.6 V in terms of DC
consumption on the inputs
- - 220 µA
I
DDA
(3)
DAC DC current
consumption in quiescent
mode
(2)
With no load, middle code (0x800) on
the inputs
- - 380 µA
With no load, worst code (0xF1C) at
V
REF+
= 3.6 V in terms of DC
consumption on the inputs
- - 480 µA
DNL
(3)
Differential non linearity
Difference between two
consecutive code-1LSB)
Given for the DAC in 10-bit
configuration
-- ±0.5 LSB
Given for the DAC in 12-bit
configuration
-- ±2 LSB
INL
(3)
Integral non linearity
(difference between
measured value at Code i
and the value at Code i
on a line drawn between
Code 0 and last Code
1023)
Given for the DAC in 10-bit
configuration
-- ±1 LSB
Given for the DAC in 12-bit
configuration
-- ±4 LSB
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