st7fmc2s7t6 STMicroelectronics, st7fmc2s7t6 Datasheet - Page 280

• Manufacturer Part Number: st7fmc2s7t6
• Description: 8-bit Mcu With Nested Interrupts, Flash, 10-bit Adc, Brushless Motor Control, Five Timers, Spi, Linsci
• Manufacturer: STMicroelectronics

ST7MC1/ST7MC2
12.14 10-BIT ADC CHARACTERISTICS
Subject to general operating conditions for V
Figure 157. R
280/308
Symbol
R
V
C
R
C
f
V
t
f
AREF
ADC
ADC
AREF
I
AIN
ADC
lkg
AIN
AIN
AIN
45
40
35
30
25
20
15
10
5
0
Analog Reference Voltage
ADC clock frequency
Conversion voltage range
Positive input leakage current for
analog input
Negative input leakage current on
analog pins
External input impedance
External capacitor on analog input
Variation freq. of analog input signal
Internal sample and hold capacitor
Conversion time (Sample+Hold)
- Sample capacitor loading time
- Hold conversion time
Conversion time (Sample+Hold)
- Sample capacitor loading time
- Hold conversion time
Analog Reference Input Resistor
0
AIN
max. vs f
Parameter
10
C
PARASITIC
ADC
(pF)
30
with C
1)
2 MHz
1 MHz
AIN
70
=0pF
V
adjacent analog pin
f
ADSTS bit in MCCBCR
register = 0
f
ADSTS bit in MCCBCR
register = 1
CPU
CPU
IN
DD
=8MHz, f
=8MHz, f
, f
V
3)
SS,
OSC
Conditions
| I
, and T
IN
Figure 158. Recommended C
|< 400µA on
ADC
ADC
1000
100
=4MHz,
=4MHz,
0.1
10
1
A
unless otherwise specified.
0.01
V
Min
SSA
3
0.1
f
AIN
(KHz)
Typ
3.5
6.5
11
5
10
16
10
6
4
1
AIN
Cain 10 nF
Cain 22 nF
Cain 47 nF
158
157
Figure
Figure
V
Max
V
see
AREF
±1
& R
DD
4
6
2)3)4)
and
10
AIN values.
1/f
1/f
Unit
MHz
k
k
pF
Hz
pF
V
V
ADC
ADC
A
A
s
s
4)