STR751FR1 STMicroelectronics, STR751FR1 Datasheet - Page 72

• Manufacturer Part Number: STR751FR1
• Description: 32-bit MCU
• Manufacturer: STMicroelectronics

Specifications of STR751FR1

• Smart Low Power Modes: SLOW, WFI, STOP and STANDBY with backup registers
• Conversion Time: min. 3.75 μs

Electrical parameters
6.3.12
72/84
10-bit ADC characteristics
Subject to general operating conditions for V
specified.
Table 45.
1. Unless otherwise specified, typical data are based on T
2. Calibration is needed once after each power-up.
3. C
4. Depending on the input signal variation (f
Symbol
t
C
f
R
C
CONV
I
V
t
ADC
ADC
I
CAL
and are not tested.
the pad capacitance (3 pF). A high C
f
allow the use of a larger serial resistor (R
ADC
AIN
lkg
ADC
AIN
AIN
PARASITIC
should be reduced.
ADC clock frequency
Conversion voltage range
External input impedance
External capacitor on analog
input
Induced input leakage current
Internal sample and hold
capacitor
Calibration Time
Total Conversion time
(including sampling time)
represents the capacitance of the PCB (dependent on soldering and PCB layout quality) plus
10-bit ADC characteristics
(3)(4)
Parameter
(2)
(3)(4)
PARASITIC
AIN
AIN
+400 µA injected
on any pin
-400 µA injected
on any pin
except specific
adjacent pins in
Table 46
-400µA injected
on specific
adjacent pins in
Table 46
Sunk on
V
), C
). It is valid for all f
f
f
CK_ADC
CK_ADC
DDA_ADC
value will downgrade conversion accuracy. To remedy this,
STR750Fxx STR751Fxx STR752Fxx STR755Fxx
Conditions
AIN
DDA_ADC
can be increased for stabilization time and reduced to
=8 MHz
=8 MHz
A
=25°C. They are given only as design guidelines
, f
ADC
PCLK
V
30 (11 for sampling + 19 for
frequencies ≤ 8 MHz.
SSA_ADC
Successive Approximation)
Min
0.4
, and T
725.25
A
Typ
5802
3.75
3.5
3.7
40
unless otherwise
(1)
V
DDA_ADC
Max
6.8
10
8
1
1
1/f
1/f
MHz
Unit
mA
kΩ
μA
μA
μA
pF
pF
μs
μs
V
ADC
ADC