... (MCP3909RD-3PH1) includes three MCP3909ICs, a PIC1 8F2520, and a PIC1 8F4550 microcontroller.The PIC1 8F2520 performs all power calculations in thereference design, while the PIC1 8F4550 provides a USBinterface ... simultaneoussampling differential inputs. Operatingfrom a single 3.3-V supply, power dissi-pation is typically 16.5 mW. The device features six individualsample-and-hold ampli-fiers, a multiplexer, ... well as adaptable to avariety of meter require-ments. Additionally, withits very low 0.1% typicalmeasurement error over a1000:1 dynamic range, theMCP3909 IC easily fitsinto meter applicationsthat...