Supply Chain Management

Microchip Completes AFE Roll Out

05 November 2014

Microchip Technology Inc. has completed its roll out of its energy-measurement analog front end (AFE) family with two new 1-8 channel, single and poly-phase chips.

The MCP3919 and MCP3912 ICs integrate three and four channels of 24-bit delta-sigma analog-to-digital conversion (ADC) with 93.5 dB SINAD, -107 dB THD and 112 dB SFDR targeted at high performance applications. The AFEs also include a low-drift voltage reference, programmable gain amplifiers, phase-delay compensation and cycle redundancy check, Microchip said.

The market for energy meters is growing substantially as the infrastructure is being upgrade worldwide. As a result, engineers are demanding an increase AFE accuracy and integration to develop the next generation smart meters. Furthermore, designers of advanced power-monitoring systems also use AFEs for applications such as server power supplies and power distribution units, electronic circuit breakers, smart power strips and other data acquisition products for the industrial, consumer and commercial markets.

Bryan J. Liddiard, marketing VP of Microchip’s Analog and Interface Products Division, said in a statement, the energy measurement AFEs complete Microchip’s high-accuracy family and it gives engineers “a single source for any single-phase or poly-phase application.”

The MCP3912 and MCP3919 AFEs are both available now for sampling and volume production priced at $1.84 each in 5,000 unit quantities.

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