AN4566 Datasheet, PDF (1/19 Pages) STMicroelectronics – Extending the DAC performance of STM32 microcontrollers

AN4566
Application note
Extending the DAC performance of STM32 microcontrollers
Introduction
Most of STM32 microcontrollers embed 12-bit Digital to Analog Converters (DAC), specified
to operate up to 1 Msps (megasamples per second).
Several applications would benefit from DACs operating at higher speeds, this note explains
how to extend the speed performances of microcontrollers listed in Table 1 using external
operational amplifiers (OpAmps).
The STM32 DAC system is described in Section 1 of this document, while an application
example focusing on 5 Msps sine wave generation is presented in Section 2.
Type
Microcontrollers
Table 1. Applicable products
Products
STM32F0 series
STM32F1 series
STM32F2 series
STM32F3 series
STM32F4 series
STM32F7 series
STM32L0 series
STM32L1 series
November 2014
DocID026799 Rev 1
1/19
www.st.com
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