 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
STM32F303RC Datasheet(PDF) 21 Page - STMicroelectronics |
|
|
|||||||||||||||||||||||||||||
STM32F303RC Datasheet(HTML) 21 Page - STMicroelectronics |
|
|
21 / 148 page  DocID023353 Rev 13 21/148 STM32F303xB STM32F303xC Functional overview 54 3.13.3 VBAT battery voltage monitoring This embedded hardware feature allows the application to measure the VBAT battery voltage using the internal ADC channel ADC1_IN17. As the VBAT voltage may be higher than VDDA, and thus outside the ADC input range, the VBAT pin is internally connected to a bridge divider by 2. As a consequence, the converted digital value is half the VBAT voltage. 3.13.4 OPAMP reference voltage (VREFOPAMP) Every OPAMP reference voltage can be measured using a corresponding ADC internal channel: VREFOPAMP1 connected to ADC1 channel 15, VREFOPAMP2 connected to ADC2 channel 17, VREFOPAMP3 connected to ADC3 channel 17, VREFOPAMP4 connected to ADC4 channel 17. 3.14 Digital-to-analog converter (DAC) Two 12-bit buffered DAC channels can be used to convert digital signals into analog voltage signal outputs. The chosen design structure is composed of integrated resistor strings and an amplifier in inverting configuration. This digital interface supports the following features: • Two DAC output channels • 8-bit or 10-bit monotonic output • Left or right data alignment in 12-bit mode • Synchronized update capability • Noise-wave generation • Triangular-wave generation • Dual DAC channel independent or simultaneous conversions • DMA capability (for each channel) • External triggers for conversion 3.15 Operational amplifier (OPAMP) The STM32F303xB/STM32F303xC embeds four operational amplifiers with external or internal follower routing and PGA capability (or even amplifier and filter capability with external components). When an operational amplifier is selected, an external ADC channel is used to enable output measurement. The operational amplifier features: • 8.2 MHz bandwidth • 0.5 mA output capability • Rail-to-rail input/output • In PGA mode, the gain can be programmed to be 2, 4, 8 or 16. |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
