MCP3919A1T-E/SS

Overview

The MCP3919A1T-E/SS is a three-channel analog front end (AFE) designed for energy metering applications. It operates on a single 3V supply with a voltage range of 2.7V to 3.6V. The device features a 24-bit resolution and supports sampling rates up to 125 kS/s per channel. Communication is handled via SPI interface. It is housed in a 28-lead SSOP package and is qualified under AEC-Q100 standards for automotive reliability.

Feature Summary

• Integrates three independent channels for simultaneous multi-phase energy measurement
• Includes internal reference and programmable gain amplifiers for signal conditioning
• Supports digital calibration to correct gain and phase errors
• Provides direct connection capability for current transformers and voltage dividers

Applications

• Three-phase residential and commercial electricity meters
• Smart grid monitoring systems requiring multi-channel data acquisition
• Industrial power quality analyzers
• Energy management subsystems in automated utility infrastructure

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration during sourcing. Confirm that the 'E' designation aligns with the required industrial temperature range specifications for your deployment environment. Ensure compatibility with existing SPI bus protocols before finalizing component selection for production integration.

Selection Notes

Select this component when a compact, low-power solution for three-phase metering is required. It is suitable for designs prioritizing high accuracy without external precision references. Consider alternative channel counts if fewer or more phases need monitoring. Verify that the SSOP-28 footprint fits within the available PCB area constraints.

Part Context

This part belongs to the MCP3919 family of analog front ends from Microchip Technology. It is engineered specifically for high-precision energy metering tasks. The device consolidates multiple analog functions into a single integrated circuit to reduce system complexity and bill of materials cost.

Replacement Considerations

MCP3919BA1T-E/SS serves as a verified substitute within the same product family.