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mcp4725
2023-02-21
MCP4725 a 12-bit DAC library for STM32 (ARM processors) using HAL drivers ⚡
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Microchip MCP4725
This is a HAL based library for I²C MCP4725 12-bit Digital-to-Analog Converter with EEPROM. This library has been ported from this Arduino library to STM32 using HAL drivers.
- operating/reference voltage 2.7v - 5.5v
- output voltage from 0 to operating voltage
- maximum output current 25mA
- output impedance 1 Ohm
- maximum output load 1000pF/0.001μF in parallel with 5 kOhm
- voltage settling time 6 μsec - 10 μsec
- slew rate 0.55 V/μs
- add 100μF & 0.1 μF bypass capacitors within 4mm to Vdd
- device has 14-bit EEPROM with on-chip charge pump circuit for fail-safe writing
- estimated EEPROM endurance 1 million write cycles
- if Vdd < 2v all circuits & output disabled, when Vdd increases above Vpor device takes a reset state & upload data from EEPROM
Supports all MCP4725 features:
- Fast write
- Register read & write
- EEPROM read & write
- Power down
- General reset
- General wake-up
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Result
This is a 100 Hz sine wave generated by MCP4725:
Contact
Telegram or E-mail: pilot.motlaq@gmail.com
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Reviews
2
(1)
user_YuGJI3KB
2025-04-17
The MCP4725 is an outstanding product designed by SMotlaq, and it's been a game-changer for my projects. As an MCP application enthusiast, I appreciate its reliability and ease of use. The thorough documentation available on the GitHub link, https://github.com/SMotlaq/mcp4725, has significantly streamlined my workflow. Highly recommend it to anyone in need of a dependable DAC.