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
MCP3421A2T-E/CHMicrochip