Description
The MCP3421A2T-E/CH from Microchip is a highly integrated, 18-bit Delta-Sigma Analog-to-Digital Converter (ADC) designed for high-resolution measurement applications. Featuring an on-chip programmable gain amplifier (PGA) and an internal voltage reference, this device delivers exceptional precision for low-power sensor interfaces and instrumentation. Its I²C serial interface ensures seamless communication with microcontrollers, making it a perfect solution for battery-powered and space-constrained designs.
Built for reliability and versatility, the MCP3421 supports both differential and single-ended inputs, providing flexibility for various signal conditioning requirements. With a wide supply voltage range of 2.7V to 5.5V and a compact SOT-23 package, it is ideally suited for high-accuracy data acquisition in industrial, medical, and consumer electronic systems where small form factor and ultra-low noise performance are paramount.
Key Features
- 18-Bit Resolution: Delivers superior accuracy for demanding measurement and sensing tasks.
- I²C Interface: Industry-standard communication protocol for simplified system integration.
- Delta-Sigma Architecture: Provides excellent noise immunity and linearity.
- Input Flexibility: Supports both differential and single-ended analog input configurations.
- Integrated PGA: On-chip Programmable Gain Amplifier allows for fine-tuned signal measurement.
- Low Power Consumption: Optimized for efficient operation in portable and battery-operated equipment.
- Wide Voltage Support: Operates reliably from 2.7V to 5.5V.
- Industrial Temperature Range: Certified for robust performance from -40°C to +125°C.
- Compact Packaging: Space-efficient 6-pin SOT-23 surface-mount design.
Applications
- Precision Instrumentation: Essential for high-accuracy weighing scales and flow meters.
- Sensor Interfacing: Ideal for thermocouples, pressure sensors, and strain gauges.
- Portable Medical Devices: Reliable data conversion for health monitoring and diagnostics.
- Industrial Automation: Precise monitoring and control for smart factories and remote sensing nodes.
Package Includes
- 1 x MCP3421A2T-E/CH 18-bit Delta-Sigma ADC (SOT-23-6)
Technical Specifications
| Parameter | Specification |
|---|---|
| Device Model | MCP3421A2T-E/CH |
| Resolution | 18-bit |
| Sampling Rate | 3.75 SPS |
| Data Interface | I²C |
| Supply Voltage | 2.7V – 5.5V |
| Number of Pins | 6 Pins |
| Operating Temp | -40°C to +125°C |
| Mounting Type | Surface Mount (SOT-23) |
Note: Product images are shown for illustrative purposes only and may differ from the actual product. For complete technical parameters, register definitions, and application notes, please refer to the official Microchip MCP3421 datasheet.
