1 Setup and Configuration

The Building Block Solutions – Digital Potentiometer boards are fully assembled and tested to evaluate and demonstrate the features of the MCP42U83 10-bit Digi-Pot ICs in all the different featured resistance values. For proper evaluation, these boards could be plugged-in to any Microchip discovery boards with mikro-e connectors, or it can be a stand-alone board connected to an external laboratory power supply. Alternatively, instead of using a Microchip Curiosity Development Board, connect the BB38W06A BBS board to any SPI/I2C Controller Board that meets the mikroBUS requirements previously stated.

MCP42U83 can have either a single-ended or a dual power supply without requiring any initial configuration. Configuring the operating mode in a dedicated register allows MCP42U83 to be used either as a potentiometer or as a rheostat (variable resistor). The internal resistor ladder has 1,023 resistors with 1,024 wiper connection points, from zero to full scale. All three terminals (A, B and W) can be independently disconnected from the resistor ladder to reduce power consumption or to configure the part as a potentiometer or as a rheostat

The Building Block Solutions - MCP42U83 10-bit Digi-Pot board, connects using a header compatible with the MikroElektronika mikroBUS™ socket. To evaluate the features of MCP42U83 devices, connect the BB38W06A Evaluation Board to any Curiosity Development Board from Microchip that has a matching socket and supports the mikroBUS format