Date: 01/08/2011

Six channel analog front end IC for three-phase energy metering

Microchip Technology Inc has announced MCP3903 AFE ,a high-accuracy, stand-alone six-channel analog front end (AFE) for three-phase energy metering, which includes six 16-/24-bit Delta-Sigma analog-to-digital converters (ADCs) and offers accuracy, with a signal-to-noise and distortion (SINAD) of 89 dB (typical) and total harmonic distortion (THD) of -99 dB (typical).

Additional integrated features include programmable gain amplifiers (PGAs), a low-drift voltage reference and phase-delay compensation, for a reduced external component count that increases design flexibility and lowers costs and is suitable for the utility and industrial markets, such as in utility meters, power-monitoring devices and instrumentation devices, says Microchip.

"The MCP3903 AFE provides engineers with a highly accurate solution for the growing smart-metering and power-monitoring market," said Bryan J. Liddiard, vice president of marketing with Microchip's Analog and Interface Products Division. "This device's integrated features enable more precise measurements than competing solutions, with reduced design time and lower cost."

Available: Now in samples
Package: 28-pin SSOP package

For more information visit: www.microchip.com