MCP3421A0T-E/CH 18-Bit Delta-Sigma ADC – High-Precision I2C Data Converter

Description

The MCP3421A0T-E/CH from Microchip is a highly integrated, 18-bit Delta-Sigma Analog-to-Digital Converter (ADC) engineered for applications where precision and space-efficiency are paramount. This single-channel device features a built-in low-noise, programmable gain amplifier (PGA) and an internal voltage reference, providing a complete solution for digitizing small-signal analog inputs. With its I2C-compatible serial interface, the MCP3421 offers seamless integration with microcontrollers, requiring minimal board space and external components.

Designed for professional-grade measurement, the MCP3421 supports multiple sampling rates and configurable gain settings, allowing engineers to tailor performance to the specific needs of their application—whether it be low-power battery-operated devices or complex industrial monitoring systems. Housed in an ultra-compact 6-pin SOT-23 package, it is an ideal choice for miniaturized electronic designs that refuse to compromise on measurement accuracy.

Key Features

• 18-Bit Resolution: Provides exceptional precision for detecting minute analog signal variations.
• Integrated PGA: Programmable gain amplifier (up to 8x) allows direct connection to low-level sensors.
• I2C Interface: Industry-standard serial protocol simplifies bus implementation and reduces pin count.
• Configurable Performance: Adjustable sampling rates allow you to balance between throughput and resolution.
• Internal Voltage Reference: Low-drift, high-stability reference ensures consistent measurement accuracy.
• Ultra-Compact SOT-23: 6-pin SMD package is perfect for high-density, space-constrained PCB layouts.

Applications

• Precision Instrumentation: High-resolution data acquisition for scientific and analytical tools.
• Sensor Interfacing: Reliable conversion for thermistors, RTDs, thermocouples, and bridge sensors.
• Portable Medical Equipment: High-accuracy, low-power monitoring for compact medical devices.
• Industrial Process Control: Precise signal feedback for automation and critical control loops.

Package Includes

• 1 x MCP3421A0T-E/CH 18-Bit Analog-to-Digital Converter (SMD-6)

Technical Specifications

Note: Product images are shown for illustrative purposes only and may differ from the actual product. For complete timing diagrams, electrical characteristics, and application circuit diagrams, please refer to the official Microchip MCP3421 datasheet.