Microchip Technology

MCP3912A1-E/MQ  

Energy Metering ICs

MCP3912A1-E/MQ Description

The MCP3912A1-E/MQ from Microchip Technology is a high-precision, 4-channel energy metering front-end IC designed for advanced 3-phase power measurement applications. Packaged in a compact 28-QFN surface-mount form factor, this device integrates delta-sigma ADCs, programmable gain amplifiers (PGAs), and phase delay compensation to deliver 0.1% measurement error accuracy. Operating within a 2.7V to 3.6V supply range and consuming just 2.8mA, it is optimized for low-power, high-performance energy monitoring systems. Compliant with ROHS3 and REACH standards, it is ideal for industrial and commercial metering solutions requiring robust, reliable performance.

MCP3912A1-E/MQ Features

• 4-Channel ADC System: Simultaneously measures current and voltage across 3 phases with a dedicated channel for neutral or auxiliary measurements.
• Ultra-Low Power: 2.8mA supply current minimizes energy consumption in always-on metering applications.
• High Accuracy: 0.1% error ensures compliance with stringent energy metering standards (e.g., IEC 62053).
• Wide I/O Voltage Range: Supports 0.3V (low) to 0.7V (high) logic levels for flexible interfacing with microcontrollers.
• Robust Packaging: 28-QFN with MSL 3 (168-hour moisture sensitivity) ensures durability in harsh environments.
• Integrated Diagnostics: Includes PGA overrange detection and phase delay correction for real-time signal integrity monitoring.

MCP3912A1-E/MQ Applications

• Smart Energy Meters: 3-phase electricity meters for residential, industrial, and grid infrastructure.
• Power Quality Analyzers: Monitors harmonics, voltage sags/swells, and phase imbalances.
• Renewable Energy Systems: Solar inverters and wind turbine power monitoring.
• Industrial Automation: Motor control and load balancing in manufacturing equipment.
• Submetering: Tenant billing and energy disaggregation in commercial buildings.

Conclusion of MCP3912A1-E/MQ

The MCP3912A1-E/MQ stands out for its multi-channel precision, low-power operation, and industrial-grade reliability, making it a top choice for modern energy metering designs. Its integration of critical features like programmable gain and phase compensation reduces external component count, lowering system cost and complexity. Whether for smart grids, renewable energy, or industrial monitoring, this IC delivers unmatched accuracy and efficiency, backed by Microchip’s proven quality.

MCP3912A1-E/MQ Documents

Download datasheets and manufacturer documentation for MCP3912A1-E/MQ

PCN Assembly/Origin :

MCP391y 04/Feb/2020      

Datasheets :

MCP3912 Datasheet      

PCN Packaging :

Packing Changes 10/Oct/2016       Label and Packing Changes 23/Sep/2015      

Design Resources :

MCP3912 Development Tool Selector      

HTML Datasheet :

MCP3912 Datasheet      

PCN Design/Specification :

MCP3912 21/Jan/2020       Errata/Datasheet Update 23/Jul/2015      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH