STM32WBA62CGF6 datasheet(48/185 Pages) STMICROELECTRONICS

48 / 185 page

Functional overview

STM32WBA6xxx

48/185

DS14736 Rev 1

ADC4 has up to 19 multiplexed channels, allowing it to measure signals from up to 10

external and 3 internal sources (the other channels are reserved). The conversion of the

various channels can be performed in Single, Continuous, Scan or Discontinuous mode.

The result of is stored in a left-aligned or right-aligned 16-bit data register.

The analog watchdog feature allows the application to detect if the input voltage goes

outside the user-defined higher or lower thresholds.

An efficient low-power mode is implemented to allow very low consumption at low

frequency. The ADC4 is autonomous in low-power modes down to Stop modes.

A built-in hardware oversampler allows analog performances to be improved while

off-loading the related computational burden from the CPU.

The ADC4 main features are:

•

High performance

–

12-, 10-, 8- or 6-bit configurable resolution

–

ADC conversion time: 0.4 µs for 12-bit resolution (2.5 MHz), faster conversion

times obtained by lowering resolution

–

Self-calibration

–

Programmable sampling time

–

Data alignment with built-in data coherency

–

DMA support

•

Low-power

–

PCLK frequency reduced for low-power operation while still keeping optimum

ADC performance

–

Wait mode: ADC overrun prevented in applications with low frequency PCLK

–

Auto-off mode: ADC automatically powered off except during the active

conversion phase, dramatically reducing the ADC power consumption

–

Autonomous mode: in low-power modes (down to Stop 1), the ADC4 automatically

switches on when a trigger occurs to start conversion, and it automatically

switches off after conversion. Data are transfered to SRAM with DMA.

–

ADC4 interrupts wake up the device down to Stop 1 mode.

Injected channel conversion

Oversampling

Up to x256

Data register

16 bits

DMA support

Autonomous mode

Offset compensation

Gain compensation

Number of analog watchdogs

Wake-up from Stop mode

1. X = supported.

Table 13. ADC features (continued)

ADC modes/features(1)

ADC4

STM32WBA62CGF6 Datasheet(PDF) 48 Page - STMicroelectronics

STM32WBA62CGF6 Datasheet(HTML) 48 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL