MCP3901A0T-I/SS

The MCP3901A0T-I/SS from Microchip Technology is a dual-channel Analog Front End (AFE) designed for precise signal acquisition. It integrates two synchronous sampling 24-bit Delta-Sigma Analog-to-Digital Converters (ADCs) with proprietary multi-bit architecture, providing high performance with 91 dB SINAD and -104 dBc THD.

Key electrical features include a programmable data rate up to 64 kSPS, low power consumption of 14 mW typical, and an ultra-low power shutdown mode with less than 2 µA. The device supports independent analog and digital power supplies, ranging from 4.5V-5.5V for analog and 2.7V-5.5V for digital.

Connectivity is facilitated by a high-speed, addressable 20 MHz SPI interface compatible with modes 0,0 and 1,1. The AFE includes features like high-gain PGAs (up to 32 V/V), phase delay compensation, and a low drift internal voltage reference (12 ppm/°C).

This component is available in a compact 20-lead SSOP package, suitable for surface mounting. It operates within industrial temperature ranges of -40°C to +85°C, with an extended range up to +125°C, making it suitable for applications in energy metering, automotive, portable instrumentation, and medical power monitoring.