MCP3905数据手册集成电路（IC）的电能计量规格书PDF

描述 Description

The MCP3905 is an energy measurement IC supporting the IEC 62053 international energy metering specification. The output of the device includes a frequency proportional to the average active (real) power at the inputs as well as a higher frequency output proportional to the instantaneous power for meter calibration. The MCP3905 incorporates two 16-bit delta-sigma ADCs with a progammable gain up to 16, which enable small shunt meter designs for measuring a wide range of Ib and Imax currents. The integrated on-chip voltage reference has ultra-low temperature drift of 15 ppm per degree C. Also on-chip is a fixed-function DSP for active (real) power calculation. For mechanical counter power meter designs, the MCP3905 has a strong 15 mA drive current to reduce field failures and mechanical counter sticking.

特性 Features

•Supplies active (real) power measurement for single-phase, residential energy-metering
•Supports the IEC 62053 International Energy Metering Specification and legacy IEC 1036/61036/687 Specifications
•Two multi-bit, Digital-to-Analog Converters (DACs), second-order, 16-bit, Delta-Sigma Analog-to-Digital Converters (ADCs)
•Ultra-low drift on-chip reference: 15 ppm/°C (typ.)
•Low IDD of 4 mA (typ.)

简介

MCP3905属于集成电路（IC）的电能计量。由制造生产的MCP3905电能计量能量计量集成电路可用于单相、双相和三相电力线系统中的高精度电能测量。这些器件可以测量线路电压和电流，并且可以计算有功、无功和视在电能，以及瞬时均方根电压和电流。