Energy measurement analog front ends

19 November 2014 Analogue, Mixed Signal, LSI News

Microchip announced the completion of its high-accuracy, single- and poly-phase MCP391X energy measurement analog front end (AFE) family. The new MCP3919 and MCP3912 members integrate three and four channels of 24-bit, delta-sigma analog-to-digital conversion (ADC), respectively, with accuracy of 93,5 dB SINAD, -107 dB THD and 112 dB SFDR for precise signal acquisition.

The chips’ specifications are optimised for single-phase energy meters with neutral monitoring (3-channel); or single-phase, three-wire energy meters (4-channel). Their high level of integration also includes a low-drift voltage reference, programmable gain amplifiers, phase-delay compensation and cyclic redundancy check (CRC).

Microchip also released evaluation boards to aid in the development of energy systems using these latest AFEs.

For more information contact Shane Padayachee, Avnet Kopp, +27 (0)11 319 8600, [email protected]

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