The Quad Digital Potentiometer (QPOT) uses the MCP4251 to give four computer controlled 10 KOhm potentiometers each with 257 steps.
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Features:
- Microchip MCP4251
- Four 10K Ohm potentiometers with 257 steps
- Typical wiper resistance is 75 Ohms
- Uses the ESPI 7474 circuit for reliable operation
Hardware:
The schematic of the QPOT is shown below. The Eagle schematic and board files are available here: qpot.sch and here qpot.brd.
