MCP3421A1T-E/CH - Microchip Technology

Manufacturer Part Number

MCP3421A1T-E/CH

Manufacturer

Microchip Technology

Introduction

High-precision 18-bit ADC with integrated programmable gain amplifier

Product Features and Performance

18-bit resolution

Sampling rate up to 3.75 samples per second

Single differential input

Sigma-Delta architecture

On-chip programmable gain amplifier (PGA)

Internal voltage reference

I2C interface for easy digital communication

Wide analog voltage supply range: 2.7V to 5.5V

Wide digital voltage supply range: 2.7V to 5.5V

Extended operating temperature range: -40°C to 125°C

Small SOT-23-6 package

Product Advantages

High-resolution conversion suitable for precision measurement

Integrated PGA for signal amplification, reducing external components

Internal reference reduces design complexity

Sigma-Delta modulator for noise immunity and linearity

I2C bus interface simplifies integration into system designs

Low power consumption for energy-sensitive applications

Robust temperature range for use in harsh environments

Key Technical Parameters

Number of Bits: 18

Sampling Rate: 3.75SPS

Number of Inputs: 1, differential

Data Interface: I2C

PGA-ADC configuration

Voltage Supply Range, Analog: 2.7V to 5.5V

Voltage Supply Range, Digital: 2.7V to 5.5V

Operating Temperature: -40°C to 125°C

Quality and Safety Features

Precision components for accurate measurements

Extensive temperature testing for reliability across diverse environments

Stable internal reference voltage

Compatibility

Easy to integrate with microcontrollers through the I2C interface

Compatible with standard surface-mount technology (SMT)

Application Areas

Industrial monitoring systems

Sensor interfacing and signal conditioning

Portable instrumentation

Battery-powered systems

Environmental monitoring devices

Product Lifecycle

Active product status

Not reported as nearing discontinuation

Availability of successor products or upgrades not mentioned

Key Reasons to Choose This Product

High precision and low noise ideal for delicate measurements

Integrated PGA saves space and cost

Ease of use with I2C interface and internal voltage reference

Suitable for battery-powered applications due to low power consumption

Rugged performance in extreme temperatures making it versatile for industrial use