ST STM32F301 6 Series Reference Manual page 193

RM0366
12 Analog-to-digital converters (ADC)
12.1 Introduction
12.2 ADC main features
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High-performance features
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• Low-power features
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In addition, there are three internal dedicated channels:
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Start-of-conversion can be initiated:
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Conversion modes
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ADC1 is connected to 15 external channels + 3 internal channels
12, 10, 8 or 6-bit configurable resolution
ADC conversion time:
Fast channels: 0.19 µs for 12-bit resolution (5.1 Ms/s)
Slow channels: 0.21 µs for 12-bit resolution (4.8 Ms/s)
ADC conversion time is independent from the AHB bus clock frequency
Faster conversion time by lowering resolution: 0.16 µs for 10-bit resolution
Can manage Single-ended or differential inputs (programmable per channels)
AHB slave bus interface to allow fast data handling
Self-calibration
Channel-wise programmable sampling time
Up to four injected channels (analog inputs assignment to regular or injected
channels is fully configurable)
Hardware assistant to prepare the context of the injected channels to allow fast
context switching
Data alignment with in-built data coherency
Data can be managed by GP-DMA for regular channel conversions
4 dedicated data registers for the injected channels
Speed adaptive low-power mode to reduce ADC consumption when operating at
low frequency
Allows slow bus frequency application while keeping optimum ADC performance
(0.19 µs conversion time for fast channels can be kept whatever the AHB bus
clock frequency)
Provides automatic control to avoid ADC overrun in low AHB bus clock frequency
application (auto-delayed mode)
One from internal temperature sensor (V
One from V /2, connected to ADC1
BAT
One from the internal reference voltage (V
by software for both regular and injected conversions
by hardware triggers with configurable polarity (internal timers events or GPIO
input events) for both regular and injected conversions
Each ADC can convert a single channel or can scan a sequence of channels
), connected to ADC1
TS
REFINT
RM0366 Rev 5
Analog-to-digital converters (ADC)
), connected to ADC1
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