Datasheet

DocID025644 Rev 3 107/135
STM32F401xD STM32F401xE Electrical characteristics
114
Equation 1: R
AIN
max formula
t
lat
(2)
Injection trigger conversion
latency
f
ADC
= 30 MHz - - 0.100 µs
--3
(5)
1/f
ADC
t
latr
(2)
Regular trigger conversion
latency
f
ADC
= 30 MHz - - 0.067 µs
--2
(5)
1/f
ADC
t
S
(2)
Sampling time
f
ADC
= 30 MHz 0.100 - 16 µs
3 - 480 1/f
ADC
t
STAB
(2)
Power-up time - 2 3 µs
t
CONV
(2)
Total conversion time (including
sampling time)
f
ADC
= 30 MHz
12-bit resolution
0.50 - 16.40 µs
f
ADC
= 30 MHz
10-bit resolution
0.43 - 16.34 µs
f
ADC
= 30 MHz
8-bit resolution
0.37 - 16.27 µs
f
ADC
= 30 MHz
6-bit resolution
0.30 - 16.20 µs
9 to 492 (t
S
for sampling +n-bit resolution for successive
approximation)
1/f
ADC
f
S
(2)
Sampling rate
(f
ADC
= 30 MHz, and
t
S
= 3 ADC cycles)
12-bit resolution
Single ADC
- - 2 Msps
12-bit resolution
Interleave Dual ADC
mode
- - 3.75 Msps
12-bit resolution
Interleave Triple ADC
mode
- - 6 Msps
I
VREF+
(2)
ADC V
REF
DC current
consumption in conversion
mode
- 300 500 µA
I
VDDA
(2)
ADC V
DDA
DC current
consumption in conversion
mode
-1.61.8mA
1. V
DDA
minimum value of 1.7 V is possible with the use of an external power supply supervisor (refer to Section 3.14.2:
Internal reset OFF).
2. Guaranteed by characterization, not tested in production.
3. V
REF+
is internally connected to V
DDA
and V
REF-
is internally connected to V
SSA
.
4. R
ADC
maximum value is given for V
DD
=1.7 V, and minimum value for V
DD
=3.3 V.
5. For external triggers, a delay of 1/f
PCLK2
must be added to the latency specified in Table 66.
Table 66. ADC characteristics (continued)
Symbol Parameter Conditions Min Typ Max Unit
R
AIN
k0,5–()
f
ADC
C
ADC
2
N 2+
()ln××
-------------------------------------------------------------- R
ADC
–=
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