Description
The MCP3905A/05L/06A devices are energy-metering ICs designed to support the IEC 62053 international metering standard specification. They supply a frequency output proportional to the average active real power, as well as a higher-frequency output proportional to the instantaneous power for meter calibration.
   
Features
• Supplies active (real) power measurement for
    single-phase, residential energy metering
• Supports IEC 62053 International Energy
    Metering Specification and legacy IEC
    1036/61036/687 Specifications
• Two multi-bit, DAC, second-order, 16-bit,
    DeltaSigma Analog-to-Digital Converters (ADCs)
• Reduced pulse width of calibration output
    frequency and mechanical counter drive for low
    power meter designs (MCP3905L)
• Increased output frequency constant options for
    meter design (MCP3905L)
• 0.1% typical measurement error over 500:1
    dynamic range (MCP3905A / MCP3905L)
• 0.1% typical measurement error over 1000:1
    dynamic range (MCP3906A)
• Programmable Gain Amplifier (PGA) for small
    signal inputs supports low value shunt current sensor:
    - 16:1 PGA - MCP3905A / MCP3905L
    - 32:1 PGA - MCP3906A
• Ultra-low drift on-chip reference: 15 ppm/°C (typ.)
• Direct drive for electromagnetic mechanical
    counter and two-phase stepper motors
• Low IDD of 4 mA (typ.)
• Tamper output pin for negative power indication
• Industrial Temperature Range: -40°C to +85°C
• Supplies instantaneous real power on HFOUT for
    meter calibration