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Innovation in the latest meter designs are being driven by a number of factors including the migration from mechanical meters to smart meters, the need to provide advanced intelligence and two-way communications and the demands of the emerging smart grid. Designing solutions for this rapidly evolving market also requires keeping up with the latest government regulations, technology innovations, competitive products and end-customer expectations.

We understand the challenges you are facing with your metering designs. Our solutions are used in millions of meters worldwide to increase accuracy and reliability while lowering total system costs. We provide products, a variety of development resources and technical support to assist you with developing engaging energy management solutions that are designed to monitor and control the use of valuable energy resources. 

Explore Our Solutions for These Applications:


Electric Meters

  • Single-phase and polyphase meters
  • Energy measurement
  • Communications

Gas, Water and Heat Flow Meters

  • Low-power design
  • Long battery life
  • Flow measurement

Smart Energy

  • Leading-edge connectivity
  • Best-in-class metrology
  • Integration and flexibility
  • Advanced security

Power Monitoring

  • Accurate energy measurement
  • Multiple calibration offerings
  • Customizable software

We offer an extensive array of 8-, 16- and 32-bit microcontrollers, 16-bit Digital Signal Controllers (DSCs), energy measurement ICs, analog components, Flash memory, serial EEPROMs, capacitive touch and wireless connectivity solutions. Visit the Products area of our website to find the solutions that can help you:

  • Drive inexpensive LED and LCD displays directly
  • Add wireless communication for automated meter reading
  • Implement anti-tampering techniques
  • Create low-power designs
  • Integrate a real time clock for advanced billing schemes
  • Improve accuracy and simplify meter calibration
  • Integrate touch sensing functionality into your designs 

Smart Energy Analog Front End Products


View All Parametrics
Product Power Type Device Type Resolution (bits) Channels Sample Rate (kSPS max) Input Type ADC SINAD (dB) Measurement Error Dynamic Range Gain Selection Voltage Reference Drift Typical (ppm/°C) Interface Architecture Analog Supply Voltage Range (V) Digital Supply Voltage Range (V) Temperature Range (°C) Comments Automotive Recommended Status Packages 5K Pricing
MCP3901 Single-Phase Analog-Front-End 24 2 2 Differential 91 0.1% 1:32 15 SPI Delta Sigma 4.5 - 5.5 2.7 - 5.5 -40 to 125 Yes In Production Consider: MCP3911 20/QFN, 20/SSOP $1.51
MCP3903 Poly-Phase Analog-Front-End 24 6 6 Differential 91 0.1% 1:32 5 SPI Delta Sigma 4.5 - 5.5 2.7 - 3.6 -40 to 125 Yes In Production Consider: MCP3913 28/SSOP $3.24
MCP3905A Single-Phase Energy Meter IC 16 2 0 Differential n/a 0.1% 500:1 1:16 15 Pulse Output Delta Sigma 4.5 - 5.5 4.5 - 5.5 -40 to 125 Active power only Yes In Production 24/SSOP $1.36
MCP3905L Single-Phase Energy Meter IC 16 2 2 Differential n/a 0.1% 500:1 1:16 15 Pulse Output Delta Sigma 4.5 - 5.5 4.5 - 5.5 -40 to 125 Active power only with reduced pulse width Yes In Production 24/SSOP $1.43
MCP3906A Single-Phase Energy Meter IC 16 2 2 Differential n/a 0.1% 1000:1 1:32 15 Pulse Output Delta Sigma 4.5 - 5.5 4.5 - 5.5 -40 to 125 Active power only Yes In Production 24/SSOP $1.54
MCP3909 Single-Phase Energy Meter IC 16 2 2 Differential 82 0.1% 1000:1 1:16 15 SPI/Pulse Output Delta Sigma 4.5 - 5.5 4.5 - 5.5 -40 to 125 Active power only Yes In Production Consider: MCP3910, MCP3913 24/SSOP $1.55
MCP3910 Single-Phase Analog-Front-End 24 2 2 Differential 93.5 0.1% 10000:1 1:32 9 SPI/2-Wire Delta Sigma 2.7 - 3.6 2.7 - 3.6 -40 to 125 2-Wire optimized for poly-phase shunt meters Yes In Production 20/QFN, 20/SSOP $1.46
MCP3911 Single-Phase Analog-Front-End 24 2 2 Differential 94.5 0.1% 10000:1 1:32 7 SPI Delta Sigma 2.7 - 3.6 2.7 - 3.6 -40 to 125 Yes In Production 20/QFN, 20/SSOP $1.40
MCP3912 Poly-Phase Analog-Front-End 24 4 4 Differential 93.5 0.1% 10000:1 1:32 9 SPI Delta Sigma 2.7 - 3.6 2.7 - 3.6 -40 to 125 Yes In Production 28/QFN, 28/SSOP $2.34
MCP3913 Poly-Phase Analog-Front-End 24 6 6 Differential 94.5 0.1% 10000:1 1:32 9 SPI Delta Sigma 2.7 - 3.6 2.7 - 3.6 -40 to 125 Also ideal for single-phase power distribution systems Yes In Production 28/SSOP, 40/UQFN $3.04
MCP3914 Poly-Phase Analog-Front-End 24 8 8 Differential 94.5 0.1% 10000:1 1:32 9 SPI Delta Sigma 2.7 - 3.6 2.7 - 3.6 -40 to 125 Also ideal for single-phase power distribution systems Yes In Production 40/UQFN $3.76
MCP3918 Single-Phase Analog-Front-End 24 1 1 Differential 93.5 0.1% 10000:1 1:32 9 SPI/2-Wire Delta Sigma 2.7 - 3.6 2.7 - 3.6 -40 to 125 2-Wire optimized for poly-phase shunt meters Yes In Production 20/QFN, 20/SSOP $1.12
MCP3919 Poly-Phase Analog-Front-End 24 3 3 Differential 93.5 0.1% 10000:1 1:32 9 SPI/2-Wire Delta Sigma 2.7 - 3.6 2.7 - 3.6 -40 to 125 2-Wire optimized for poly-phase shunt meters Yes In Production 28/QFN, 28/SSOP $1.84
MCP39F501 Single-Phase Power Monitoring IC 24 2 2 Differential 94.5 0.1% 4000:1 1:32 10 UART Delta Sigma 2.7 - 3.6 2.7 - 3.6 -40 to 125 Yes In Production Consider: MCP39F511 28/QFN $2.00
MCP39F511 Single-Phase Power Monitoring IC 24 2 2 Differential 94.5 0.1% 4000:1 1:32 10 UART Delta Sigma 2.7 - 3.6 2.7 - 3.6 -40 to 125 Yes In Production 28/QFN $2.00
MCP39F511A Single-Phase Power Monitoring IC 24 2 2 Differential 94.5 0.1% 4000:1 1:32 7 UART Delta Sigma 0 - 0 2.7 - 3.6 -40 to 125 Yes In Production 28/QFN $2.00
MCP39F511N Single-Phase Power Monitoring IC 24 3 3 Differential 94.5 0.5% 4000:1 1:32 10 UART Delta Sigma 2.7 - 3.6 2.7 - 3.6 -40 to 125 Metering and monitoring of two electrical loads Yes In Production 28/QFN $2.00
MCP39F521 Single-Phase Power Monitoring IC 24 2 2 Differential 94.5 0.1% 4000:1 1:32 10 I2C Delta Sigma 2.7 - 3.6 2.7 - 3.6 -40 to 125 Yes In Production 28/QFN $2.00

Documentation


Title Download
AN1426 - Design Tips for the MCP3911 Download
AN1151 - PIC18F2520 MCP3909 3-Phase Energy Meter Reference Design - Meter Test Results and Adapting the Meter Design for other Requirements Download
AN994 - IEC Compliant Active-Energy Meter Design Using the MCP3905/6 Download
AN1300 - Designing with the MCP3901 Dual Channel Analog-to-Digital Converters Download
Title Download
Utility Metering Brochure Download
Smart Energy Solutions Brochure Download

Reference Designs


Title Part Number Devices Supported
MCP39F521 Power Meter ADM00686 MCP39F521, MCP1754S, MCP2221, MCP9700
MCP39F511 Power Meter ADM00667 MCP39F511, MCP2221, MCP6021, MCP9700
MCP39F11N Power Meter ADM00706 MCP39F511N, MCP1754S, MCP2221
MCP39F501 Power Meter ARD00455 MCP39F501, MCP1754S, MCP2200, MCP9700
MCP3905A Energy Meter MCP3905RD-PM1 MCP3905A, MCP3906A

Smart Energy Monitoring, Metering & Control Session (DESIGN West 2012)

Government regulations and the cost of building power generating systems are two forces driving a more efficient power distribution system. To achieve the goal of enabling the smart grid, an integrated system for power measurement, monitoring, communication and control is essential. This session presents Microchip’s solutions from energy measurement devices through communications.