MCP3905L数据手册集成电路（IC）的电能计量规格书PDF

描述 Description

The MCP3905L 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 MCP3905L 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. The MCP3905L offers reduced pulse width of calibration output frequency and mechanical counter drive for low power meter designs.

特性 Features

•Supplies active (real) power measurement for single-phase, residential energy metering
•Supports IEC 62053 International EnergyMetering Specification and legacy IEC1036/61036/687 Specifications
•16-bit, Delta-Sigma Analog-to-Digital Converters (ADCs)
•Reduced pulse-width of calibration outputfrequency and mechanical counter drive for lowpower meter designs (MCP3905L)
•Increased output frequency constant options formeter design (MCP3905L)
•0.1% typical measurement error over 500:1dynamic range (MCP3905A / MCP3905L)
•Programmable Gain Amplifier (PGA) for smallsignal inputs supports low value shunt currentsensor
•Ultra-low drift on-chip reference: 15 ppm/°C (typical)
•Direct drive for electromagnetic mechanicalcounter and two-phase stepper motors

简介

MCP3905L属于集成电路（IC）的电能计量。由制造生产的MCP3905L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。