Microchip Technology MCP3421A3T-E/CH
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.95 | $2.95 |
| 15+ | $2.86 | $42.90 |
| 25+ | $2.80 | $70.00 |
| 50+ | $2.64 | $132.00 |
| 100+ | $2.33 | $233.00 |
| N+ | $0.47 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Number of Bits | 18 |
| Sampling Rate (Per Second) | 3.75 |
| Number of Inputs | 1 |
| Input Type | Differential |
| Data Interface | I2C |
| Configuration | PGA-ADC |
| Ratio - S/H:ADC | - |
| Number of A/D Converters | 1 |
| Architecture | Sigma-Delta |
| Reference Type | Internal |
| Voltage - Supply, Analog | 2.7V ~ 5.5V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V |
| Features | PGA |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
| Grade | - |
| Qualification | - |
| Package / Case | SOT-23-6 |
| Supplier Device Package | SOT-23-6 |
| ROHS |  |
The MCP3421A3T-E/CH is an 18-bit delta-sigma ADC from Microchip Technology, featuring a built-in programmable gain amplifier (PGA). It operates at a sampling rate of 3.75 SPS, prioritizing precision over speed. The device has a single differential input channel and communicates via the I2C interface. It includes an internal voltage reference, simplifying design. Housed in a compact SOT-23-6 package, it is ideal for space-constrained, low-power applications such as medical devices, industrial sensors, and portable instrumentation.
- High Resolution: 18-bit conversion provides exceptional accuracy for low-level signals.
- Integrated PGA: Amplifies small sensor signals, eliminating the need for external amplification.
- Internal Reference: Reduces external component count and simplifies design.
- I2C Interface: Requires only two wires for communication, saving GPIO pins.
- Wide Temperature Range: Operates from -40°C to 125°C, suitable for harsh environments.
Precision Sensor Measurement
The 18-bit resolution and internal PGA make the MCP3421A3T-E/CH ideal for measuring small signals from bridge sensors, thermocouples, and strain gauges with high accuracy.
Data Acquisition Systems
With its I2C interface, this ADC can be easily integrated into low-speed data acquisition systems for environmental monitoring, where high resolution is more important than speed.
Medical Instrumentation
The high resolution and low noise performance are suitable for medical devices like digital thermometers, blood glucose meters, and wearable health monitors that require precise analog measurements.
Industrial Process Control
In industrial settings, the MCP3421A3T-E/CH can be used to monitor temperature, pressure, and flow with high precision, enabling accurate process control in manufacturing.
Portable Battery-Powered Devices
The low power consumption and small SOT-23-6 package make it ideal for battery-powered devices such as portable data loggers and field instruments.
Weighing Scales
The internal PGA allows direct connection to load cells, making this ADC suitable for digital weighing scales that require high resolution and stability.
- Q: What type of ADC is the MCP3421A3T-E/CH?
- A: It is an 18-bit delta-sigma ADC with a programmable gain amplifier (PGA) architecture.
- Q: What is the resolution?
- A: The resolution is 18 bits, providing high precision.
- Q: What is the sampling rate?
- A: The sampling rate is 3.75 SPS (samples per second).
- Q: How many channels does it have?
- A: It has 1 differential input channel.
- Q: What interface does it use?
- A: It uses the I2C interface.
- Q: What is the package?
- A: It is available in a SOT-23-6 package.
MCP3421A3T-E/CH.pdf
- Q: What type of ADC is the MCP3421A3T-E/CH?
- A: It is an 18-bit delta-sigma ADC with a programmable gain amplifier (PGA) architecture.
- Q: What is the resolution?
- A: The resolution is 18 bits, providing high precision.
- Q: What is the sampling rate?
- A: The sampling rate is 3.75 SPS (samples per second).
- Q: How many channels does it have?
- A: It has 1 differential input channel.
- Q: What interface does it use?
- A: It uses the I2C interface.
- Q: What is the package?
- A: It is available in a SOT-23-6 package.
