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3-bit binary weighted resistor DAC
Let the 3-bit input digital voltages be each represented by 5 volts for 1 and 0 volts for a “0”. Use a single pole double throw (SPDT) switch to set each input bit to either “0” or “1”.
At the output of the circuit, add an inverting op-amp with appropriate choice of resistors so that the final output voltage is between 0 to 20 volts.
DAC resistor berbobot biner 3-bit
Biarkan tegangan digital input 3-bit masing-masing diwakili oleh 5 volt untuk 1 dan 0 volt untuk "0". Gunakan sakelar lemparan ganda tiang tunggal (SPDT) untuk menyetel setiap bit input ke "0" atau "1".
Pada keluaran rangkaian, tambahkan op-amp pembalik dengan pilihan resistor yang sesuai sehingga tegangan keluaran akhir antara 0 hingga 20 volt.
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