Practical case: R-2R Resistor Network (Simple DAC)
Автор: PrometeoBlog
Загружено: 2025-12-20
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🌐 Read the article at: https://prometeo.blog/en/r-2r-resisto...
Objective and use case.
In this session, you will build a 4-bit Digital-to-Analog Converter (DAC) using an R-2R resistor ladder topology. This circuit sums binary weighted inputs to produce an analog output proportional to the digital value.
Why it is useful:
Audio Synthesis: Used in simple function generators to create sine or triangle waves from digital microcontrollers.
Video Signals: Historically used in VGA adapters to generate color intensity levels.
Cost-Effective Control: Allows generating variable control voltages without dedicated DAC chips.
Signal Processing Education: Demonstrates superposition and Thevenin’s theorem in a practical way.
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