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Shared February 11, 2026
This is a circuit diagram for a 3-bit flash analog-to-digital converter (ADC). It's a type of circuit that converts an analog input voltage into a digital output.
Here’s a simple breakdown of how it works:
• Resistor Ladder: The chain of resistors on the left acts as a voltage divider, creating a series of reference voltages. • Comparators: The triangles are comparators. Each one compares the input voltage (Vin) to a specific reference voltage from the resistor ladder. • Encoder: The logic gates and the "8-line to 3-line encoder" take the output from the comparators and convert it into a 3-bit binary number.
Flash ADCs are known for being very fast because they perform the comparison all at once (in parallel), hence the name "flash."
#flash #adc #microelectronics #vlsi
