The MCP3425A0T-E/CH is a high-precision 16-bit analog-to-digital converter (ADC) from Microchip Technology, designed for multi-channel signal acquisition in industrial, medical, and IoT applications. Housed in an 8-lead TSSOP package, this device supports four differential input channels with programmable gain (1x, 2x, 4x, or 8x) and offers a wide input voltage range of ±2.5V (full-scale at 1x gain). It communicates via an I²C interface, enabling flexible configuration and integration with microcontrollers or embedded systems.

Key Features

This ADC delivers 16-bit resolution with a maximum sampling rate of 2,400 samples per second (SPS), adjustable down to 2.5 SPS for low-power operation. It integrates a 2.048V reference voltage for high accuracy and features a low-power shutdown mode (10 µA typical). The MCP3425A0T-E/CH operates across an extended temperature range of -40°C to +125°C, ensuring reliability in harsh environments. It includes overvoltage protection, programmable data rates, and a power-saving architecture with typical supply current of 150 µA at 2,400 SPS.

Applications

Ideal for multi-channel measurement systems, this ADC is widely used in industrial sensors (e.g., strain gauges, temperature probes), battery management systems, and medical instrumentation (e.g., patient monitoring devices). It is also employed in IoT nodes for environmental sensing, automotive diagnostics, and precision test equipment requiring simultaneous high-resolution conversion of multiple analog signals. Its compact form factor and low power consumption make it suitable for space-constrained embedded designs.

Summary

The MCP3425A0T-E/CH combines 16-bit precision, four-channel flexibility, and programmable gain, making it a versatile solution for applications demanding high-resolution data acquisition in resource-constrained environments. Its robust temperature range, low noise, and I²C interface simplify integration into industrial, medical, and IoT systems requiring reliable analog signal processing. This ADC is essential for engineers designing multi-channel measurement solutions in demanding operational conditions.