Description

The MCP3909 device is an energy-metering IC designed to support the IEC 62053 international metering standard specification. It supplies a frequency output proportional to the average active real power, with simultaneous serial access to ADC channels and multiplier output data. This output waveform data is available at up to 14 kHz with 16-bit ADC output and 20-bit multiplier output words. The 16-bit, delta-sigma ADCs allow for a wide range of IB and IMAX currents and/or small shunt (

Features

• Supports IEC 62053 International Energy Metering Specification

• Digital Waveform Data Access Through SPI Interface

- 16-bit Dual ADC Output Data Words

- 20-bit Multiplier Output Data Word

• Dual Functionality Pins Support Serial Interface Access and Simultaneous Active Power Pulse Output

• Two 16-bit Second Order Delta-sigma Analogto-Digital Converters (ADCs) with Multi-bit DAC

- 81 dB SINAD (typical) on Both Channels

• 0.1 Typical Active Energy Measurement Error Over 1000:1 Dynamic Range

• PGA for Small Signal Input Supports Low Value Shunt Current Sensor

• Ultra-low Drift On-chip Reference,15 ppm/°C (typical)

• Direct Drive for Electromagnetic Mechanical Counter and Two-phase Stepper Motors

• Low IDD of 4 mA (maximum)

• Tamper Output Pin for Negative Power Indication

• Temperature Ranges:

- Industrial: -40°C to +85°C

- Extended: -40°C to +125°C

MCP3909-I/SS属于集成电路（IC） > 电能计量。微芯科技股份有限公司制造生产的MCP3909-I/SS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。