Energy measurement AFEs
4 February 2015
Analogue, Mixed Signal, LSI
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).
Avnet Kopp, +27 (0)11 319 8600, [email protected], www.avnet.co.za
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