Datasheet

MCP4XXX DIGITAL POTENTIOMETER

DAUGHTER BOARD USER’S GUIDE

Chapter 2. Installation and Operation

2.1 INTRODUCTION

This daughter board allows evaluation of digital potentiometer devices in different

circuit configurations. The board supports the MCP42XXX devices and the

MCP4011/MCP4021 devices.

This board is intended to be “plugged into” the 28-pin header of the PICDEM™ Demo

Boards. The board may also be “jumpered” into a desired application circuit.

2.2 FEATURES

The MCP4XXX Digital Potentiometer Daughter Board has the following features:

• Header to interface to PICDEM™ boards using 28-pin header, including:

- PICDEM™ HPC Explorer Demo Board

- PICDEM™ FS USB Demo Board

- PICDEM™ 2 Plus Demo Board (Rev 5 or later)

-PICDEM™ LCD

• TC1240A Voltage Doubler to generate V

IHH

voltage for WiperLock™ Technology

evaluation

• Jumpers for configuration of U1-Pot0, U2-Pot0, and U2-Pot1 terminal connections

• Jumpers for MCP4021 Pot (A, W, and B) to replace U1-Pot0 in desired circuit

• Jumpers for routing signals (SI, SO, SCK, and CS

) from either a PICDEM HPC

Demo board or a PICDEM FS USB Demo Board

• Pads for easy connection to the Digital Potentiometer signals, including the

Resistor Network Terminals and the Serial Interface signals

• Connection terminals may be either through-hole or surface-mount