Datasheet

Electrical characteristics STM32F100x4, STM32F100x6, STM32F100x8, STM32F100xB
72/88 Doc ID 16455 Rev 7
5.3.18 DAC electrical specifications
Table 46. DAC characteristics
Symbol Parameter Min Typ Max
(1)
Unit Comments
V
DDA
Analog supply voltage 2.4 3.6 V
V
REF+
Reference supply voltage 2.4 3.6 V
V
REF+
must always be below
V
DDA
V
SSA
Ground 0 0 V
R
LOAD
(2)
Resistive load with buffer ON 5 k
R
O
(1)
Impedance output with buffer OFF 15 k
When the buffer is OFF, the
Minimum resistive load between
DAC_OUT and V
SS
to have a
1% accuracy is 1.5 M
C
LOAD
(1)
Capacitive load 50 pF
Maximum capacitive load at
DAC_OUT pin (when the buffer
is ON).
DAC_OUT
min
(1)
Lower DAC_OUT voltage with buffer
ON
0.2 V
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
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
0.5 mV
It gives the maximum output
excursion of the DAC.
DAC_OUT
max
(1)
Higher DAC_OUT voltage with buffer
OFF
V
REF+
– 1LSB
V
I
DDVREF+
DAC DC current consumption in
quiescent mode (Standby mode)
220 µA
With no load, worst code
(0xF1C) at V
REF+
= 3.6 V in
terms of DC consumption on the
inputs
I
DDA
DAC DC current consumption in
quiescent mode (Standby mode)
380 µA
With no load, middle code
(0x800) on the inputs
480 µA
With no load, worst code
(0xF1C) at V
REF+
= 3.6 V in
terms of DC consumption on the
inputs
DNL
(3)
Differential non linearity Difference
between two consecutive code-1LSB)
±0.5 LSB
Given for the DAC in 10-bit
configuration
±2 LSB
Given for the DAC in 12-bit
configuration
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)
±1 LSB
Given for the DAC in 10-bit
configuration
±4 LSB
Given for the DAC in 12-bit
configuration