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| sensor:dac_conv [2026/07/28 21:45] – created vamsan | sensor:dac_conv [2026/07/28 22:06] (current) – [LamaPLC: Digital-to-Analog Converter (DAC) modules] vamsan | ||
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| ====== LamaPLC: Digital-to-Analog Converter (DAC) modules ====== | ====== LamaPLC: Digital-to-Analog Converter (DAC) modules ====== | ||
| - | {{ :sensor:aht10_1.png?120|AHT10 Modul}} | + | {{ :sensor:mcp4728_1.png?120|MCP4728 Digital-to-Analog Converter (DAC) module}} |
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| + | While microcontrollers easily read analog inputs using an Analog-to-Digital Converter (ADC), most struggle to generate a clean analog output. They typically rely on Pulse Width Modulation (PWM), which mimics analog by rapidly toggling a digital pin on and off. Dedicated DAC modules are required for applications needing an exact, steady voltage (such as audio generation, power supply biasing, or industrial motor controls). | ||
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| + | ^ Module ^ Comm. ^ Bit-Precision ^ Operating Supply Voltage ^ Output Channels ^ Estimated Price (Module) ^ Other Info / Key Features ^ | ||
| + | | MCP4728 | I²C | 12-bit | 2.7V to 5.5V | 4 | €6.50 - €10.50 | Integrated EEPROM (retains output voltage on power-cycle), | ||
| + | | MCP4725 | I²C | 12-bit | 2.7V to 5.5V | 1 | €1.50 - €5.00 | Integrated EEPROM, highly affordable, tiny SOT-23 layout popular on standard breakout boards. | | ||
| + | | MCP47A1 | I²C | 6-bit | 1.8V to 5.5V | 1 | €1.00 - €3.00 | Volatile memory only, ultra-low-cost design, highly responsive for basic calibration or trimming. | | ||
| + | | GP8413 | I²C | 15-bit | 3.3V to 5.5V | 2 | €6.50 - €16.00 | Industrial high precision, hardware configurable 0-5V or 0-10V output ranges via integrated booster circuitry. | | ||
| - | ^ Module ^ Communication ^ Bit-Precision ^ Operating Supply Voltage ^ Output Channels ^ Estimated Price (Module) ^ Other Info / Key Features ^| MCP4728 | I²C | 12-bit | 2.7V to 5.5V | 4 | €6.50 - €10.50 | Integrated EEPROM (retains output voltage on power-cycle), | ||
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