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Availability of OpAmps in stm32h7

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maxter
Associate II

‎2025-09-26 2:35 AM - last edited on ‎2025-09-26 2:49 AM by

To which models does this document apply https://www.st.com/content/ccc/resource/training/technical/product_training/group0/0f/de/60/a5/80/9f/48/dc/STM32H7-Analog-OPAMP_OPAMP/files/STM32H7-Analog-OPAMP_OPAMP.pdf/_jcr_content/translations/en.STM32H7-Analog-OPAMP_OPAMP.pdf? Do any MCUs of the STM32H7R3/S3 series have the built-in opamps? Any information on this subject except this AN?

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mƎALLEm
ST Employee

‎2025-09-26 2:44 AM - edited ‎2025-09-26 2:45 AM

Hello,

First, that document is not an application note: AN it's just a presentation.

Second, you need to refer to the datasheet of the product especially the table: " features and peripheral counts" that allows you to find which feature is available or not.

Unfortunately STM32H7R3/S3 series don't have the built-in opamps.

Refer to the product datasheet Table 3. STM32H7Rxx8 features and peripheral counts

Contrarily to STM32H743 (datasheet/same table):

mALLEm_0-1758879848776.png

Hope I've answered your question.

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.

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mƎALLEm
ST Employee

‎2025-09-26 2:44 AM - edited ‎2025-09-26 2:45 AM

Hello,

First, that document is not an application note: AN it's just a presentation.

Second, you need to refer to the datasheet of the product especially the table: " features and peripheral counts" that allows you to find which feature is available or not.

Unfortunately STM32H7R3/S3 series don't have the built-in opamps.

Refer to the product datasheet Table 3. STM32H7Rxx8 features and peripheral counts

Contrarily to STM32H743 (datasheet/same table):

mALLEm_0-1758879848776.png

Hope I've answered your question.

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.
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