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| STM32L151CBT6 Datasheet, PDF (90/121 Pages) STMicroelectronics – Ultra-low-power 32-bit MCU ARM-based Cortex-M3, 128KB Flash, 16KB SRAM, 4KB EEPROM, LCD, USB, ADC, DAC | |||
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Electrical characteristics
STM32L151x6/8/B, STM32L152x6/8/B
6.3.16
12-bit ADC characteristics
Unless otherwise specified, the parameters given in Table 54 are guaranteed by design.
Table 53. ADC clock frequency
Symbol Parameter
Conditions
Min
fADC
ADC clock
frequency
VREF+ = VDDA
Voltage
range 1 & 2
2.4 V ⤠VDDA ⤠3.6 V
VREF+ < VDDA
VREF+ > 2.4 V
VREF+ < VDDA
VREF+ ⤠2.4 V
0.480
1.8 V ⤠VDDA ⤠2.4 V
VREF+ = VDDA
VREF+ < VDDA
Voltage range 3
Max
16
8
4
8
4
4
Unit
MHz
Table 54. ADC characteristics
Symbol
Parameter
Conditions
Min Typ
VDDA
VREF+
VREF-
IVDDA
Power supply
Positive reference voltage
Negative reference voltage
Current on the VDDA input
pin
2.4 V ⤠VDDA ⤠3.6 V
VREF+ must be below
or equal to VDDA
1.8
1.8(1)
VSSA
1000
IVREF(2)
Current on the VREF input
pin
VAIN Conversion voltage range(3)
Peak
Average
400
0(4)
12-bit sampling rate
Direct channels
0.03
Multiplexed channels 0.03
10-bit sampling rate
fS
8-bit sampling rate
Direct channels
0.03
Multiplexed channels 0.03
Direct channels
0.03
Multiplexed channels 0.03
6-bit sampling rate
Direct channels
0.03
Multiplexed channels 0.03
Max
3.6
VDDA
1450
700
450
VREF+
1
0.76
1.07
0.8
1.23
0.89
1.45
1
Unit
V
µA
V
Msps
Msps
Msps
Msps
90/121
Doc ID 17659 Rev 8
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