Microchip Technology

MCP3423-E/UN  

Analog to Digital Converters

MCP3423-E/UN Description

The MCP3423-E/UN from Microchip Technology is a high-precision, low-power 18-bit delta-sigma analog-to-digital converter (ADC) designed for applications requiring accurate signal acquisition. Housed in a compact 10-MSOP package, this ADC integrates a single-channel differential input with an I2C interface, making it ideal for space-constrained designs. Operating across a 2.7V to 5.5V supply range (both analog and digital), it ensures compatibility with a wide range of systems. With an internal reference and programmable gain amplifier (PGA), the MCP3423-E/UN delivers 18-bit resolution at a 3.75 samples per second (SPS) rate, balancing precision with power efficiency. Its selectable I2C address feature allows for easy multi-device configurations, enhancing flexibility in complex designs.

MCP3423-E/UN Features

• 18-bit resolution for high-accuracy measurements.
• Differential input with 2-channel multiplexing, reducing noise susceptibility.
• I2C interface with selectable addresses, enabling seamless integration into digital systems.
• Internal PGA with adjustable gain (1x, 2x, 4x, 8x) for signal conditioning.
• Low power consumption, ideal for battery-operated devices.
• Wide supply voltage range (2.7V–5.5V), supporting mixed-voltage environments.
• Internal voltage reference, eliminating external components.
• RoHS3 compliant and REACH unaffected, meeting environmental standards.
• Surface-mount (MSOP-10) packaging, optimized for compact PCB layouts.

MCP3423-E/UN Applications

The MCP3423-E/UN excels in precision measurement systems, including:

• Industrial sensors (strain gauges, RTDs, pressure transducers).
• Portable medical devices (patient monitoring, glucose meters).
• Battery management systems (current/voltage sensing).
• Automotive diagnostics (sensor signal conditioning).
• IoT edge nodes requiring low-power, high-resolution ADCs.
  Its differential input minimizes common-mode noise, making it suitable for high-noise environments, while the PGA enhances small-signal accuracy in sensor interfaces.

Conclusion of MCP3423-E/UN

The MCP3423-E/UN is a versatile, high-performance ADC offering 18-bit resolution, low power consumption, and flexible I2C configurability. Its differential inputs, internal PGA, and wide voltage range make it a superior choice for precision analog front-ends in industrial, medical, and IoT applications. With Microchip’s reliability and compliance with environmental standards, this ADC is a robust solution for demanding measurement tasks.

MCP3423-E/UN Documents

Download datasheets and manufacturer documentation for MCP3423-E/UN

Datasheets :

MCP3422-24      

PCN Packaging :

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

Design Resources :

MCP3423 Development Tool Selector      

HTML Datasheet :

MCP3422-24      

PCN Design/Specification :

MCP342xxx 20/Oct/2021      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH