MCP3909 Series 5.5 V Energy Metering IC with SPI Interface - SSOP-24

Mfr Part#: MCP3909-I/SS
Mounting Method:  Surface Mount
Package Style:  SSOP-24
Packaging:  TUBE
Std Packaging Qty:  59




$2.07 USD (each)
10 - 49 $2.07
50 - 99 $1.78 (Save 14%)
100 - 249 $1.73 (Save 16%)
250 - 499 $1.69 (Save 18%)
500+ $1.65 (Save 20%)


Qty in Stock : 22
Factory Stock : 0
Factory Lead-Time: 14 Weeks
Min. Order Qty: 10
Multiple of: 1
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Product Highlight

  • Wh Accuracy: 0.1 %
  • Dynamic Range: 1000 to 1 dB
  • Interface: SPI

The MCP3909 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 simultaneous serial SPI interface to access the ADC channels and multiplier output data.

The MCP3909 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 output waveform data is available at up to 14 kHz with 16-bit ADC output and 20-bit multiplier output data. The integrated on-chip voltage reference has an ultra-low temperature drift of 15 ppm per degree C. 


  • 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, Delta-Sigma Analog-to-Digital Converters (ADCs)
  • Ultra-low drift on-chip reference: 15 ppm/°C (typ.)
  • Low IDD of 4 mA (typ.)
  • Active power pulse output
  • SPI™ interface for access to raw ADC and multiplier data

View the complete product family of MCP390x series Energy Metering IC

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