MCP3913A1T-E/SSVAO

Analog Front End (AFE) Overview

The MCP3913A1T-E/SSVAO is a six-channel Analog Front End (AFE) designed for energy metering applications. It integrates six synchronous sampling 24-bit Delta-Sigma ADCs, each with a programmable gain amplifier (PGA) offering up to 32 V/V gain. The device supports data rates up to 125 ksps and features a high-speed 20 MHz SPI interface. Key performance metrics include a typical SINAD of 94.5 dB, THD of -107 dBc, and SFDR of 112 dBFS. It includes an internal low-drift voltage reference (9 ppm/°C), phase delay compensation, and advanced security features such as CRC-16 checksums and register map locking.

Analog Front End (AFE) Feature Summary

• Six synchronous sampling 24-bit Delta-Sigma ADCs with individual PGA (up to 32x gain)
• High dynamic performance: 94.5 dB SINAD, -107 dBc THD, and 112 dBFS SFDR
• Advanced security with 16-bit CRC checksums and register map lock via secure key
• Integrated low-drift 1.2V internal voltage reference (9 ppm/°C) and phase delay compensation

Analog Front End (AFE) Applications

• Polyphase Energy Meters
• Automotive Energy Monitoring
• Portable Instrumentation
• Medical Power Monitoring

Analog Front End (AFE) Procurement Notes

Verify the specific suffix 'VAO' against the manufacturer's current product status documentation. Distributor listings may indicate limited availability or require factory special orders. Confirm that the SSOP-28 package and AEC-Q100 qualification align with the target design requirements before procurement.

Analog Front End (AFE) Selection Notes

Select this component for designs requiring six synchronized measurement channels with high accuracy over a wide dynamic range. Ensure the host MCU supports the 20 MHz SPI interface and DMA capabilities for efficient data handling. Verify that the power supply constraints (2.7V–3.6V) and thermal dissipation in the SSOP-28 package are suitable for the application environment.

Analog Front End (AFE) Part Context

This part belongs to the MCP3913 family of six-channel analog front ends from Microchip Technology. It is specifically packaged in a 28-lead SSOP format with the 'VAO' suffix indicating automotive-grade qualification and specific packaging variations. It serves as a direct replacement for standard MCP3913 variants where automotive reliability and specific tape-and-reel packaging are required.

Analog Front End (AFE) Replacement Considerations

Direct pin-compatible replacements within the same package include other MCP3913 variants such as MCP3913A1T-E/SS. When substituting, verify that the specific ordering suffix matches the required temperature range and packaging type.