Microchip unveils Energy-Measurement Analog Front Ends

Microchip Technology has introduced its next-generation family of energy-measurement Analog Front Ends (AFEs) with industry-leading accuracy. The MCP3913 and MCP3914 integrate six and eight 24-bit, delta-sigma Analog-to-Digital Converters (ADCs), respectively, with 94.5 dB SINAD, -106.5 dB THD and 112 dB SFDR for high-accuracy signal acquisition and higher-performing end-products.  The MCP3914's two extra ADCs enable the monitoring of more sensors with one chip, reducing cost and size.  These AFEs also feature a CRC-16 checksum and register-map lock, for increased robustness.

Microchip's new AFEs improve application performance with their industry-leading accuracy, while providing the flexibility to adjust the data rate to optimize each application's rate of performance versus power consumption.

Bryan J. Liddiard, Marketing VP of Microchip's Analog and Interface Products Division, said,
"Our new AFEs make it easier to design high-accuracy energy-measurement systems for 3-phase metering and multiple-load monitoring.”

Microchip also announced two new tools to aid in the development of energy systems using these AFEs.

The MCP3913 and MCP3914 AFEs are both available for sampling and volume production in 5,000-unit quantities.  Both AFEs are offered in 40-pin uQFN packages, and the MCP3913 adds a 28-pin SSOP package option.