Datasheet

MCP3901 LOW-COST POWER
MONITOR REFERENCE DESIGN
 2010 Microchip Technology Inc. DS51915A-page 9
Chapter 1. Product Overview
1.1 OVERVIEW
The MCP3901 Low-Cost Power Monitor Reference Design is used to evaluate the per-
formance of the MCP3901 dual channel ADC, as well as a development platform for
PIC18F-based applications. A programmed PIC18F25K20 device in the power monitor
processes samples acquired by the MCP3901 to obtain Root Mean Square Voltage
(U
RMS
), Root Mean Square Current (I
RMS
), Active Power, Apparent Power, and Power
Factor values.
1.1.1 Feature Highlights
• Dual ADC MCP3901 output display using serial communication to the PC
software interface
• MCP3901 ADC ability to do simultaneous sampling; with sampling speed up to
64 ksps, and 91 dB SINAD
• Computation of U
RMS
, I
RMS
, Active Power, Apparent Power, and Power Factor
FIGURE 1-1: MCP3901 Low-Cost Power Monitor Reference Design