Microchip Technology MCP3422A7-E/SN
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $11.36 | $11.36 |
| 15+ | $2.61 | $39.15 |
| 25+ | $2.56 | $64.00 |
| 50+ | $2.41 | $120.50 |
| 100+ | $2.13 | $213.00 |
| N+ | $0.43 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | |
| Packaging | Tube | |
| Number of Bits | 18 |
| Sampling Rate (Per Second) | 3.75 |
| Number of Inputs | 2 |
| Input Type | Differential |
| Data Interface | I2C |
| Configuration | MUX-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 | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| ROHS |  |
The MCP3422A7-E/SN is a multi-channel 18-bit Analog-to-Digital Converter featuring a built-in multiplexer, programmable gain amplifier (PGA), and internal voltage reference. It samples at 3.75 SPS, providing high-accuracy conversion for low-frequency signals. With two differential input channels and an I2C interface, this ADC simplifies sensor interfacing in space-constrained designs. Its wide operating temperature range and low power consumption make it suitable for portable instrumentation, industrial monitoring, and automotive sensing applications.
- High Precision: 18-bit resolution ensures extremely fine voltage detection, ideal for sensitive measurement applications.
- Integrated Signal Chain: The on-chip MUX and PGA (up to 8x gain) eliminate external components, reducing board space and design complexity.
- Simple Digital Interface: I2C communication requires only two wires, simplifying PCB routing and enabling multi-device addressing.
- Wide Temperature Range: Rated for -40°C to 125°C, ensuring reliable operation in harsh industrial and automotive environments.
- Low Power Consumption: Designed for battery-operated devices, extending operational life in portable systems.
Precision Sensor Signal Digitization
The 18-bit resolution and internal PGA (gain up to 8x) allow direct digitization of bridge sensors, thermocouples, and strain gauges without external amplification, preserving signal integrity.
Portable Data Acquisition Systems
With a low supply current and I2C interface, the MCP3422A7-E/SN is ideal for battery-powered loggers that require accurate, low-speed sampling of multiple sensors.
Medical Instrumentation
In devices like digital thermometers or glucose monitors, the high resolution and internal reference ensure repeatable, drift-free measurements over the -40°C to 125°C range.
Automotive Sensor Monitoring
The wide temperature range and 2-channel MUX make it suitable for monitoring battery voltage and temperature in automotive ECUs, where reliability is critical.
Industrial Process Control
For 4-20 mA loop transmitters or pressure transducers, the MCP3422A7-E/SN provides the accuracy needed for closed-loop control, while the I2C bus simplifies daisy-chaining multiple converters.
Weigh Scale and Force Measurement
The combination of 18-bit resolution and internal PGA enables precise weight readings, even with low-output load cells, reducing the need for additional analog front-end components.
- Q: What type of ADC is the MCP3422A7-E/SN?
- A: It is a high-resolution, low-power, 18-bit Analog-to-Digital Converter (ADC) with an integrated MUX-PGA-ADC architecture.
- Q: What is the resolution of this ADC?
- A: The MCP3422A7-E/SN provides 18-bit resolution, enabling precise measurement of small analog signals.
- Q: What is the sampling rate?
- A: The maximum sampling rate is 3.75 SPS (samples per second), optimized for high-accuracy, low-speed applications.
- Q: How many input channels does it have?
- A: It features 2 differential input channels, selectable via the built-in multiplexer (MUX).
- Q: What digital interface does it use?
- A: It communicates via the I2C interface, supporting standard and fast modes for easy integration.
- Q: What package is available?
- A: It comes in an 8-SOIC (0.154", 3.90mm Width) package, suitable for compact PCB designs.
MCP3422A7-E/SN.pdf
- Q: What type of ADC is the MCP3422A7-E/SN?
- A: It is a high-resolution, low-power, 18-bit Analog-to-Digital Converter (ADC) with an integrated MUX-PGA-ADC architecture.
- Q: What is the resolution of this ADC?
- A: The MCP3422A7-E/SN provides 18-bit resolution, enabling precise measurement of small analog signals.
- Q: What is the sampling rate?
- A: The maximum sampling rate is 3.75 SPS (samples per second), optimized for high-accuracy, low-speed applications.
- Q: How many input channels does it have?
- A: It features 2 differential input channels, selectable via the built-in multiplexer (MUX).
- Q: What digital interface does it use?
- A: It communicates via the I2C interface, supporting standard and fast modes for easy integration.
- Q: What package is available?
- A: It comes in an 8-SOIC (0.154", 3.90mm Width) package, suitable for compact PCB designs.
